RHC 2013;4(2)141-153.html

Reviews in Health Care 2013; 4(2): 41-153

Cancer

Narrative review

Gender differences in symptoms experienced by advanced cancer patients: a literature review

Erin Wong 1, Gillian Bedard 1 , Natalie Pulenzas 1, Breanne Lechner 1, Henry Lam 2, Nemica Thavarajah 1, Lori Holden 2, Edward Chow 2, Natalie Lauzon 2

1 Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada

2 Department of Radiation Therapy, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada

Abstract

INTRODUCTION: Advanced cancer patients are multi-symptomatic and require attentive palliative care. As gender differences are apparent in multiple aspects of everyday life, this literature review aims to determine the gender differences seen in the population of advanced cancer patients and the symptoms that they experience.

METHODS: A literature review was conducted using the OvidSP Medline database from 1946 to November 2012. Randomized, prospective or retrospective cohort studies on advanced cancer patients who were undergoing any type of palliative treatments (palliative radiation, chemotherapy) or those in which palliative treatments have failed (antalgic treatment) were included. The patient population, tools/questionnaire used and gender differences in symptoms found statistically or qualitatively significant in the respective studies were extracted.

RESULTS: Of the 163 studies resulting from the literature search, nineteen publications were identified. Gender differences in multiple symptoms were discovered. Gender differences were commonly found in symptoms of emotional changes, fatigue, gastrointestinal symptoms (nausea, vomiting, and diarrhea) anxiety, tension, sleep problems and pain.

CONCLUSION: At present, gender differences seen in the symptoms experienced by advanced cancer patients continues to be inconclusive. Further study investigating gender differences in the symptoms experienced by advanced cancer patients as the primary endpoint is recommended.

Keywords

Gender differences; Advanced cancer; Palliative care

Corresponding author

Natalie Lauzon BSc, MRTT

Department of Radiation Therapy, Odette Cancer Centre, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, Toronto, ON Canada

Email: Natalie.Lauzon@Sunnybrook.ca

Disclosure

The authors declare no competing financial interests

Introduction

According to the World Health Organization, the main goal of palliative care is to improve the quality of life in patients and their family members when faced with a life-threatening illness [1]. Palliative care provides relief from pain or other stressful symptoms without pursuing change in the prognosis of the patient. It encompasses all aspects of patient care including physical, spiritual and psychological [1]. Therefore in palliative care for advanced cancer patients, symptom experience is of upmost importance as its affect on the quality of life of patients directs the palliative treatment decisions [2,3]. Advanced cancer patients are patients treated with a palliative intent and are usually described as being multi-symptomatic [3,4]. In this cancer population, inadequate symptom management is frequently reported due to multiple factors such as physician’s under-estimation, inadequate assessment and patient’s reluctance to report symptoms such as pain [5]. As such, understanding the factors that may influence the symptoms experienced by patients may assist palliative care physicians in better management of quality of life.

Gender appears to impact many elements of human nature, thus it is not unreasonable to hypothesize that there may be gender differences in oncology, specifically the symptoms experienced by palliative care cancer patients [6-9]. Studies specifically on gender differences in oncology symptoms have been rare [9]. The purpose of this review is to identify reported gender differences in symptoms experienced by palliative care cancer patients.

Methods

Search strategy

A literature review was conducted using the OvidSP Medline database from 1946 to November 2012. Subject headings and keywords ‘palliative care’ and ‘terminal care’ were combined with ‘neoplasms’. This search was then combined with ‘sex factors’ or identified as having the terms ‘gender’ or ‘sex’ within three words of the term ‘difference’.

There were 163 resultant articles identified. Three authors (EW, NL, and GB) independently identified potential articles. Articles were selected based upon title and abstract and relevant articles were pulled for further examination. References of the articles were manually searched for relevant publications.

Inclusion criteria

To be included in this present literature review, articles had to meet the following criteria:

  • Population: patients diagnosed with advanced cancer.
  • Intervention: treatments which were defined as being palliative in nature, including conventional palliative chemotherapy and radiation as well as treatments such as antalgic treatments for patients in which the conventional management has failed.
  • Types of studies: randomized trials, prospective or retrospective cohort studies.
  • Endpoint: gender difference as an area of investigation and a difference was found through analysis.

Exclusion criteria

img_05_01.jpg

Figure 1. Flow chart of article selection

Articles were excluded if any of the following criteria was met:

  • Population: primary caregivers as the population of interest, populations in which patients could not be separated for analysis or population of interest which was focused on a single primary cancer site.
  • Language: publications in a language other than English.
  • Intervention: if within the population of study, any intervention that was deemed curative in nature.
  • Types of studies: review articles or case reports.
  • Endpoint: gender difference was not an area of investigation or gender difference was not found significant after analysis.

Figure 1 illustrates the flow chart of article selection

Data extraction

The following information was extracted from the identified publications:

  • Sample size of the population.
  • Patient population characteristics.
  • Questionnaire/tool used to assess the symptoms.
  • Gender differences observed in symptoms.

Results

Nineteen studies which indicated gender differences in symptoms experienced by palliative cancer patients were included in this review. Flow chart of article selection is illustrated in Figure 1. A variety of symptoms were identified which exhibited differences based on the gender of the patient. The resultant symptoms included: emotions, fatigue, sleep problems, nausea, vomiting, anxiety, hoarseness, early satiety, pain and others (Table I).

Reference

Sample size (n.)

Patient population

Questionnaire/tool used

Gender difference

Symptom identified: dyspnea

Heedman et al. [24]

431

Patients with metastatic diseases admitted to a hospital-based home care due to need of palliative care were recruited

Edmonton Symptom Assessment System (ESAS) and a visual analog scale assessing overall quality of life

Dyspnea was the only gender-different symptom found; male patients had greater dyspnea than female patients

Symptom identified: emotions

Carey et al. [10]

172

Terminally ill advanced cancer patients treated in a cancer center with or without holistic care (main focus of study)

Profile of Mood States (POMS)

Female patients self-described themselves as being in more positive moods than males (on all 6 POMS scale). Female patients were less tense, less anxious and less fatigued

Zimmerman et al. [11]

285

Patients with advanced cancer (diagnosed with Stage IV cancer, stage III/IV lung cancer, and locally advanced pancreatic or esophageal cancer) and had a clinical prognosis of 6 months to 2 years

Functional Assessment of Cancer Therapy – General (FACT-G) and Functional Assessment of Chronic Illness Therapy – Spiritual Well-being (FACIT-Sp)

Male patients had better emotional well-being in comparison to female patients; therefore male gender was predicted to have better emotional well-being

Symptom identified: emotions in relation to pain

Sela et al. [12]

111

Advanced cancer outpatients were recruited from a Pain and Symptom Control Clinic. Patients with a diagnosis of cancer, no brain metastases and had a mini mental score of 28/30 or more were eligible for inclusion.

A Pain and Symptom Control Clinic Assessment form, which consisted of seven visual analogue scales, was used to measure the two dimensions of cancer pain: sensation/intensity and affect.

Gender difference was seen between the emotions associated with pain. Females experienced statistically significant emotions of fear and hopelessness in relations to cancer pain compared to males.

There was also a gender difference in emotional reactions towards the physical sensory dimension of pain: males experienced frustration, anger, and exhaustion while females experienced frustration, helplessness and exhaustion. Male patients reported feelings of hopelessness and helplessness as insignificant.

In relation to pain, correlations between emotions were different for both genders. Correlations were seen between ‘anger and frustration’, ‘hopelessness and helplessness,’ and ‘anger and fear’ in male patients while ‘helplessness and anger’, ‘hopelessness and fear’, and ‘hopelessness and helplessness’ were seen in female patients.

Symptom identified: fatigue

Zeng et al. [13]

1,397

Advanced cancer patients referred to the Rapid Response Radiotherapy Program for palliative radiotherapy were recruited at an outpatient cancer center

Edmonton Symptom and Assessment System (ESAS)

Significant correlation was found between the female gender and fatigue

Symptom identified: nausea and symptom cluster

Cheung et al. [9]

1,358

Patients aged 18 years or older with metastatic cancer were recruited from the oncology palliative care clinics at a hospital in Toronto, Ontario, Canada

Edmonton Symptom Assessment System (ESAS)

Female patients reported poorer nausea scores than males.

The main symptom cluster for male patients was: pain, depression and anxiety. There was also a secondary cluster of fatigue, decreased appetite, and dyspnea. In females, the main symptom cluster was decreased appetite, pain, nausea, drowsiness and fatigue. There was also a secondary cluster of poor general well-being, depression, and anxiety.

Symptom identified: nausea and vomiting

Reuben et al. [17]

1,596

Terminal cancer patients with confirmed malignancy and a medically certified prognosis of 6 months or less were recruited

A modified set of questions from Melzak was used to measure symptoms experienced by patients

67% of female patients reported symptoms of nausea and vomiting in comparison to the 56% of male patients who reported symptoms of nausea and vomiting. There was no correlating explanation of this relationship with age, chemotherapy or primary cancer site. This relationship was still found significant when breast cancer was excluded

Symptom identified: pain

Kanbayashi et al. [21]

71

Terminal cancer patients with cancer pain were recruited from a university hospital

States of pain were evaluated using a 5 point verbal rating scale (0-excellent, 1-good, 2-moderate, 3-poor, and 4-very poor)

Cancer pain was significantly correlated with gender: cancer pain was worsened when the patient was of the male gender

Mercadante et al. [22]

181

Advanced cancer patients on opioid therapy for more than 4 weeks prior to death were included in the study. These patients were followed at home until death

Clinical information was collected for each patient: pain intensity (either self-reported or doctor-rated VAS), symptoms associated with opioid therapy, and information regarding opioid dosage were recorded

Female patients reported visceral pain more frequently while male patients reported somatic pain more frequently

Tu et al. [23]

58

Advanced cancer inpatients and caregivers who were able to complete a survey (as judged by a health care professional) were recruited

Specialized questionnaire that included: demographic data, disease information, evaluation of bio-psycho-social factors and quality of life

Pain perception was affected by gender. Patients who were of the female gender were more likely to have higher pain perception

Symptom identified: self-efficacy

Mystakidou et al. [25]

99

Stage IV advanced cancer patients were recruited from the Pain Relief and Palliative Care Unit

Gender Self-Efficacy Scale and Spielberger’s State-Trait Anxiety Inventory

Male patients experienced significantly more self-efficacy than female patients

Symptom identified: taste change and diarrhea

Komurcu et al. [20]

50

Advanced cancer patients admitted to the Cleveland Clinic Foundation Palliative Medicine Program were recruited. Patients with confirmed malignancy and were not receiving chemotherapy or radiation were eligible.

Survey consisting of questions on demographic and medical information as well as 16 gastrointestinal symptoms questions.

After the exclusion of gender-specific primary cancer sites, there was no gender difference in terms of number of gastrointestinal symptoms experienced. However, female patients experienced more taste change and diarrhea in comparison to their male counterpart and this remained significant after the exclusion of gender-specific primary cancer sites.

Symptom identified: variety

Donnelly et al. [3]

1000

*

°

Male patients reported dyspnea and hiccough more commonly than female patients.

For 8 symptoms, gender difference in severity was found. Symptoms of dyspnea, hoarseness, hiccough and dysphagia were more severe in males, while anxiety, nausea, vomiting, and early satiety were more severe in females.

Dunlop et al. [15]

50

Patients with far advanced cancer were recruited from two hospices. These patients had to have had sufficient orientation as judged by the interviewer.

Cards with 6 relevant symptoms and 8 other symptoms were used. The symptoms on the card were chosen in reference to the results of a survey completed in the advanced cancer population. Patients were also asked to volunteer other symptoms not listed on the cards.

In female patients, certain gastrointestinal symptoms were more frequent and self-rated as more distressing, this included: dry mouth (twice as frequent and second most distressing symptom) and nausea (twice as frequent and fourth most distressing symptom).

For male patients, constipation and difficulty sleeping occurred more frequently than in female patients and was ranked higher as a distressing symptom

Mercadante et al. [19]

211

Advanced cancer patients referred to a home palliative care program who survived for more than 3 weeks through retrospective assessments were included. Patients who were experiencing certain symptoms were selected for inclusion

Information on pain intensity (self-reported or doctor-rated VAS), symptoms (due to opioid usage or advanced cancer), and information regarding opioid usage were collected

Gender difference was found for nausea and vomiting (at baseline and last visit before death), dry mouth (at baseline and ten days after treatment) and diarrhea (at ten days after treatment and last visit before death). Female patients more frequently reported all four of these symptoms than male.

However, male patients more frequently reported dyspnea at baseline than female.

Mercadante et al. [18]

373

Advanced cancer patients referred to a home palliative care program were included in this study and followed until death. Patients who were experiencing certain symptoms were selected for inclusion

Information on pain intensity (self-reported or doctor-rated VAS) and symptoms (due to opioid usage or advanced cancer) were collected.

Nausea and vomiting was more common to female patients at three respective performance statuses (KPS 50, 40, 10), while diarrhea was more common to female patients at KPS 50 and 40. At performance status of KPS 10, female patients experienced greater severity of confusion than male patients.

Greater severity of dyspnea was found in male patients at KPS of 50.

Kirkova et al. [4]

1,000

Both inpatients and outpatients with a diagnosis of cancer referred to a Palliative Medicine Program were recruited*

An 8 page checklist which included: demographics, diagnosis, ECOG performance score, and self-reported prevalence and severity of 38 empirically-chosen symptoms (rated as mild, moderate, or severe in intensity)°

Male patients had a higher prevalence of sleep problems than females. Nausea, vomiting and anxiety were more prevalent in female patients than their male counterpart.

In terms of interaction between demographic factors: age, gender and performance status (PS) were significantly associated with the prevalence of anxiety. It was found that older male patients with a lower PS presented with more anxiety than younger female patients with a higher PS

Walsh et al. [16]

1,000

*

°

Gender was found to be associated with 4 other symptoms: dysphagia, hoarseness, >10% weight loss, and early satiety. Symptoms of dysphagia, hoarseness, >10% weight loss were more likely to occur in male patients. However, early satiety was more likely to occur in female patients. After excluding gender-specific primary cancer sites (ovary, uterus, breast, cervix and prostate) a difference in results was found. Male patients were now associated with more coughing and headaches than females while the association between male gender and sleep problems disappeared

Zimmerman et al. [14]

150

Patients referred to the palliative care clinic in Toronto, Ontario, Canada were recruited if they had metastatic cancer and were 18 years of age or older, able to provide consent and were able to complete the questionnaire.

Edmonton Symptom Assessment System (ESAS)

Greatest gender difference was found for the symptoms: anxiety and appetite. Female patients experienced greater anxiety than male patients. Female patients also had less appetite in comparison to their male counterparts.

Gender differences were also found for the symptoms: depression, fatigue, sense of well-being and drowsiness. Female patients scored worse on these symptoms than male patients.

Table I. Summary of gender differences found in the 19 studies

* Same patient population as previously mentioned

° Same questionnaire/tool used as previously mentioned

Findings

Gender difference in emotions, or changes in emotions, caused by advanced cancer was analyzed by multiple studies and found to be significant [10-12]. Carey et al. found that terminally ill female cancer patients were in more positive moods [10]. However, a contradicting discovery was made by Zimmerman et al. who found that male advanced cancer patients tended to have better emotional well-being than their female counterparts [11]. Another study by Sela et al. investigated emotions elicited in response to cancer pain and found that there was a difference between emotions experienced by male and female patients. Both males and females experienced similar frustration and exhaustion, however a significant difference was found between the amounts of helplessness experienced, with females experiencing greater helplessness [12].

Gender differences were also observed in symptoms of fatigue [10,13,14]. Carey et al. reported that terminally ill female cancer patients were less fatigued than their male counterparts [10]. However, Zeng et al. found contrasting evidence in a population of advanced cancer patients referred for palliative radiotherapy, in which female patients experienced more fatigue than male patients [13]. Similar findings were seen in the study by Zimmerman et al., in which female patients also had more fatigue than male patients [14].

Tension and anxiety were also two symptoms found to exhibit a gender difference [10]. Carey et al. found that terminally ill female cancer patients were both less tense and less anxious than male patients however three other studies have found the contrary [10]. In terms of sleep problems experienced by patients, Kirkova et al. and Dunlop et al. both found that advanced cancer male patients had significantly more sleep problems than female patients [4,15]. Similarly, Walsh et al. found the same relationship, however after gender-specific primary cancers were excluded from analysis, the relationship between the male gender and sleep problem did not remain significant [16].

Nausea, vomiting and diarrhea were also symptoms where gender differences were observed [4,9,15,17-20]. Throughout the studies that examined nausea and vomiting in relation to gender, all studies concluded that these two symptoms occurred more frequently in female advanced cancer patients [4,9,15,17-19]. Donnelly et al. also found that female gender was associated with greater severity of these symptoms [3]. Similarly, females reported more diarrhea than male patients, while Dunlop et al. found that male patients experienced constipation more frequently than females and it was also greatly distressing to these patients [18-20]. Pain was also a significant symptom in which gender difference was found [21-23]. Kanbayashi et al. found that cancer pain was more severe if the advanced cancer patients were of the male gender [21]. However, contradictory findings were found by Tu et al. who found that female advanced cancer patients experienced higher pain perception than male patients [23]. Mercadante et al. also found that there was a gender difference in terms of the type of pain experienced by each gender. Female advanced cancer patients experienced more visceral pain while male patients reported more somatic pain [22].

Walsh et al. and Donnelly et al. found a gender difference associated with the symptoms of dysphagia and hoarseness with males experiencing these symptoms more commonly and with greater severity than females [3,16]. Walsh et al. also found that male patients experienced greater than 10% weight loss more commonly than females, however Donnelly et al. found that females experienced greater severity of early satiety [16]. The gender difference seen in the symptom of early satiety was further confirmed by Zimmerman et al. who also found that female patients experienced greater decreased appetite in comparison with male patients [14]. When gender-specific primary cancer sites were excluded from the study by Walsh et al., male gender was also associated with coughing and headaches while female gender was associated with symptoms of early satiety [3,16].

Three studies concluded that male patients experienced dyspnea more commonly with one study reporting males experiencing greater severity of it as well [3,19,24]. Mercadante et al. more specifically found that male patients suffered greater severity of dyspnea at Karnofsy Performance Score (KPS) of 50 [18].

There were other symptoms that were not as commonly investigated. Mystakidou et al. conducted the only study that looked at self-efficacy gender differences. Self-efficacy is the judgment of one’s own ability to mentally and physically execute a task. It is also associated with psychological health with efficacious people more prone to positivity while others with lower self-efficacy more prone to negativity or depression [25]. It was found that male patients experienced greater self-efficacy than female patients [25]. Komurcu et al. found that taste change occurred more commonly in female patients while Mercadante et al. and Dunlop et al. found that dry mouth occurred more frequently in female patients [15,19,20]. A study by Mercadante et al. also found that greater severity of confusion occurred in female patients with a KPS of 10 [22]. Zimmerman et al. found that females experienced greater depression, more negative sense of well-being and greater drowsiness than their male counterparts [14].

Discussion

Symptoms experienced by advanced cancer patients are of considerable importance as it determines the direction of their palliative care [1]. Gender influence is an important aspect of investigation in its relationship with symptom experience.

From the 19 included studies, multiple symptoms that were influenced by gender were identified including: emotion, pain, fatigue and many others. Although specific influences of a gender on emotions or changes in emotions experienced by advanced cancer patients was contradictory, there is strong evidence that in general, gender does influence the emotion of patients as demonstrated by Holzner et al. in a general population using the Fact-G [10,11,26]. This difference in the general population, however, was less pronounced than in the advanced cancer population identified by Zimmerman et al. [11,26]. Such gender differences in emotional moods within the advanced cancer patient population may be associated with psychological factors such as the denial of the diagnosis of advanced cancer [10]. Furthermore, as suggested by the gender differences seen in the emotional perception of pain, gender differences in emotions may be a confounding factor for other symptoms in which a gender difference is observed due to the emotional perception of the other symptoms [11,12]. This further promotes the complexity behind this symptom. Further research in this area is required to enable the promotion of individualized psychotherapy for patients with advanced cancer especially in hopes of further improving their emotional quality of life.

Similarly, gender difference on the symptom of fatigue was also inconclusive however, there have been other studies in a variety of populations that identified gender difference in the symptom of fatigue. Similar to the findings by Zeng et al., Pater et al., in a population of cancer patients (not only advanced cancer) found that more severe fatigue was associated with female cancer patients [27]. Husain et al. and Kroenke et al. also found that females have more fatigue in a palliative care population with patients of multiple advanced illnesses and adult primary-care patients respectively [28,29]. Similarly, Akechi et al. found that the symptom of fatigue was greater in ambulatory female cancer patients (not necessarily advanced cancer) [30]. In conjunction to this discovery, they also found that female patients who were housewives had less fatigue in comparison, suggesting this may be dependent on the burden of work as well [30]. As seen from the supporting studies, gender differences occur commonly for the symptom of fatigue, with females generally experiencing more fatigue than males. Cancer patients experience psychological distress such as tension and anxiety. Similar symptom pattern with respect to gender was seen in general cancer patients, not only palliative advanced cancer patients, which observed that females experienced significantly greater anxiety than males [31-33]. For symptoms such as fatigue, tension and anxiety, the greater prevalence seen in the female gender may also be accounted for, or at least partially, by the observation that females report a greater symptom burden [14].

Pain was also a symptom of controversy. The influence of gender on the types of pain experienced, as suggested by Mercadante et al., may explain the differences as they found that female patients experienced more visceral pain while male patients experienced more somatic pain [22]. As well, the emotions elicited by cancer pain may also affect the gender difference [12]. In a group of healthy individuals, Keogh et al. found that pain is exacerbated in females when they are unable to separate the sensation from the emotional feelings elicited by the pain [34]. Gender difference in the symptom of pain may also be explained by the differences in pain threshold between males and females. As demonstrated by Soetanto et al. and in accordance to previous studies, females presented with lower threshold for pain than males [35]. This difference in pain threshold may be a combination of biological and sociological manifestation. Greater awareness of pain in females may be due to their lifetime experience of greater biological pain from menstruation or childbirth, while a sociological manifestation may be the reason for fewer reports of pain by males due to their role expectations [36]. Due to these biological and sociological differences, females and males may report different pain severity despite experiencing the same amount of pain. As such, these findings suggest that health care professionals should take into consideration the multidimensionality of pain by combining emotional counseling with other treatments, especially for female patients.

For nausea and vomiting, although the increased frequency seen in females in the advanced cancer population is generally agreed upon and this prevalence is also common to other disorders, its’ mechanism is still uncertain [4,9,15,17-20]. Symptoms such as dyspnea, decreased appetite, drowsiness, sleep problems, hoarseness, diarrhea, constipation and others were all found to have gender difference in experience. However, as there was not an overwhelming source of evidence, it would be advisable to conduct further investigation for such symptoms [3,9,15,24].

A limitation of this study is that gender difference in symptom experience was not the primary endpoint of any of the studies included in this review. A second limitation is the heterogeneity of the tools used which in turn leads to difficulty in the comparison of results. Thirdly, the heterogeneity of the patient population may also explain certain differences in findings. An example of this limitation is seen in the difference in findings between Carey et al. and Zeng et al. on the symptom of fatigue. Even within the advanced cancer patient population, there is a spectrum of patients. The patient population in the study by Carey et al. only included terminally-ill advanced cancer patients, who were inpatients at a hospital, while the study by Zeng et al. included any outpatient advanced cancer patients with a larger variation on prognosis [10,13]. This may contribute to the differences in findings and may also explain other discrepancies between studies as terminally-ill inpatients have a lower performance status on average in comparison to the other advanced cancer patients [4,10,11].

As shown in the study by Walsh et al., exclusion of gender-specific primary cancer types can also change the gender differences observed [16]. This suggests that primary cancer types significantly affect the symptoms experienced by advanced cancer patients and is also a limitation in this review as the gender differences may be influenced by the primary cancer types. Therefore for future studies on gender difference, these limitations should be addressed in order to determine conclusive evidence on the effects of gender on symptom experience in this subpopulation.

For the symptoms experienced by palliative cancer patients, gender differences identified may be due to difference in perception, reporting, or even actual biological differences between the two sexes [11,36]. As there is significant difference between males and females in other areas of health such as cardiovascular diseases or psychological diseases, gender difference should also be an important consideration in the treatment of patients with advanced cancer [37]. Additionally, the influence of gender should not only be considered for treatment of patients but also in the creation of health care policies and the design of clinical trials as it plays an important role in a patient’s experience of certain symptoms and their palliation. It is suggested that symptoms identified in this review be further investigated with gender difference being the primary endpoint to discover the conclusive influence of gender. Furthermore, as gender differences are also seen in symptom experience of other non-cancer patients as well as the general population, it is worthwhile to investigate the differences in gender impact on symptoms of advanced cancer patients in comparison to other patient populations to better understand the implications [26,38-40].

Question for further research

It is suggested that symptoms identified in this review be further investigated with gender difference being the primary endpoint to discover the conclusive influence of gender

The review in brief

Clinical question

Advanced cancer patients are multi-symptomatic and require attentive palliative care. As gender differences are apparent in multiple aspect of everyday life, this literature review aims to determine the gender differences seen in the population of advanced cancer patients and the symptoms that they experience.

Type of review

Narrative

Search of literature

A literature review was conducted using the OvidSP Medline database from 1946 to November 2012. Subject headings and keywords ‘palliative care’ and ‘terminal care’ were combined with ‘neoplasms.’ This search was then combined with ‘sex factors’ or identified as having the terms ‘gender’ or ‘sex’ within three words of the term ‘difference.’

Conclusions

At present, gender differences seen in the symptoms experienced by advanced cancer patients continues to be inconclusive.

Limitations

Primary cancer types significantly affect the symptoms experienced by advanced cancer patients and is a limitation in this review as the gender differences may be influenced by the primary cancer types.

Acknowledgements

We thank the generous support of the Bratty Family Fund, Michael and Karyn Goldstein Cancer Research Fund, Joseph and Silvana Melara Cancer Research Fund, and the Ofelia Cancer Research Fund.

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