Systematic reviews of qualitative evidence: what are the experiences of women with endometriosis?

'It just stops me from living': A qualitative study of losses experienced by women with self-reported endometriosis

AIMS

To understand the experience of loss in Australian women with endometriosis.

DESIGN

A total of 532 participants completed an online survey containing three open-ended questions relating to pelvic pain and activity loss due to endometriosis. Participants were Australian women aged between 18 and 50 years (M = 30.8, SD = 7.1) with a self-reported diagnosis of endometriosis. An inductive, qualitative approach, with template analysis was used to identify and organize themes. A pragmatic feminist perspective was used to interpret the findings.

RESULTS

Three main themes were identified: the loss of liberty: 'I'm trapped in the house'; the loss of bodily autonomy: 'I can barely move/breathe/talk' and loss of connection: 'It stops me from being social'. Pain emerged as the greatest concern for participants, preventing them from the physical functioning required to participate in many of life's activities.

CONCLUSIONS

The losses women with endometriosis experience are wide-reaching, restricting control and choice across multiple life domains. Losses were often unacknowledged by loved ones and healthcare providers, further impacting the physical, emotional and mental health of participants.

PATIENT OR PUBLIC CONTRIBUTION

People with endometriosis were involved in the design of the study, including identifying topics of interest.

The Subjective Experience of Dyspareunia in Women with Endometriosis: A Systematic Review with Narrative Synthesis of Qualitative Research

Although dyspareunia (pain during intercourse) is common in women with endometriosis, there is poor qualitative evidence describing women’s subjective experience of this symptom. This systematic review of qualitative research aimed to provide an in-depth exploration of women’s lived experience of dyspareunia (i.e., how they perceive and describe their pain, how they deal with it, how it affects their psychological health and intimate relationships). A total of 17 published articles were included. Our findings, derived from thematic analysis, highlighted that endometriosis-related dyspareunia manifests itself in multiple forms (deep, introital, and/or positional dyspareunia, at orgasm, during and/or after intercourse). Women use a variety of coping strategies to deal with sexual pain, such as interrupting or avoiding intercourse, enduring pain to seek pregnancy, and/or finding alternative ways to enjoy sexuality. Dyspareunia impairs women’s psychological health, especially in terms of poor self-esteem and sense of femininity and has negative consequences on intimate relationships. Unfortunately, both women and physicians are often reluctant to discuss sexual issues. Sexual health should be routinely assessed during counselling with endometriosis patients. Helping women find targeted strategies to enjoy sexuality despite endometriosis may significantly improve their psychological health and quality of life.

The impact of surgically diagnosed symptomatic endometriosis on women's social lives, work and education: An inductive classical content analysis

AIMS

The aim of this study is to extend understandings of the impact of surgically diagnosed endometriosis on women's social lives, work and education.

METHODS

Participants (N = 200; average age: 27.1 years (±6.72)) were recruited from a range of sources, including social media and private women's health clinics. They completed an online survey comprising seven open-ended questions about how experience with endometriosis impacted (i) overall life; (ii) family relationships; (iii) friendships; (iv) attendance at social events; (v) engagement in leisure activities; (vi) work; and (vii) education. Data were analysed using inductive classical content analysis.

RESULTS

The data set contained 1400 discrete codable statements, with 19% of women reporting some form of social impact. A key result was the role of family and friends, both positive and negative, as well as the positive role that the workplace/educational institution can play (noted by 50% of participants). Findings highlight the negative impact on leisure activities, reported by 86% of women. The exhaustion of sick and unpaid leave was reported by 41% of women.

CONCLUSION

This study highlights the impact of endometriosis on the social and economic lives of Australian women and underscores the importance of the comprehensive response recommended in the National Action Plan for Endometriosis.

Perceived barriers and facilitators to accessing and utilising sexual and reproductive healthcare for people who experience homelessness: a systematic review

INTRODUCTION

People who experience homelessness face disproportionately poor reproductive health and adverse pregnancy outcomes, including but not limited to unintended pregnancy, abortion, low birth weight and preterm birth, as well as a higher risk of sexually transmitted infections (STIs). Precarious living conditions are known to contribute to poor uptake and engagement with sexual and reproductive healthcare (SRH) for this population.

AIM

To identify and understand the perceived barriers and facilitators for accessing and utilising SRH for people who experience homelessness from their perspective, and the perspective of support staff/volunteers and healthcare professionals.

METHODS

Electronic databases and online sources were searched. Two reviewers independently carried out the screening, data extraction, critical appraisal, data synthesis and thematic analysis of findings.

RESULTS

Following deduplication and screening, 23 papers/reports were considered eligible for the review. Barriers for people experiencing homelessness to accessing and utilising SRH were identified within the themes of complexity, feelings and knowledge (ie, individual-level factors), as well as patient/provider interaction and healthcare system (ie, organisational factors). Facilitators were identified within all of the above themes except for complexity.

CONCLUSIONS

Both population characteristics and attributes of the healthcare system influence access and utilisation of SRH by people experiencing homelessness. Given the complexity of living conditions associated with homelessness, greater efforts to improve access should be placed on healthcare systems and aspects of care delivery. This systematic review highlights current gaps in the literature and provides recommendations for enhancing future research and practice to meet the needs of this vulnerable group more effectively.

Body image concerns in individuals diagnosed with benign gynaecological conditions: scoping review and meta-synthesis

Background

Benign gynaecological conditions (BCGs) and body image-related concerns are commonly experienced by reproductive-aged female-identified individuals. Qualitative evidence from cancer populations identifies a link between diseases of the sexual organs and body image distress encompassing appearance, sensory and functional aspects. Most BCGs and the impacts on body image have been studied separately. However, commonalities exist between these conditions including chronicity, diagnostic delays, and menstrual-related social stigma. This systematic scoping review and meta-synthesis aimed to compare and contrast the experience of body image in the benign conditions of endometriosis, polycystic ovarian cysts, uterine fibroids, and vulvar intraepithelial neoplasia.

Method

Electronic databases (MEDLINE, PsycINFO, Scopus, CINAHL, Embase, and Allied and Complementary Medicine) were searched in February 2020 and relevant articles were examined to identify papers that qualitatively explored the relationship between body image and BCGs. Meta-synthesis was used to analyse the 17 papers that met the inclusion criteria.

Results

Six main themes evolved from this iterative analysis: loss of control; regained control; silence – menstrual concealment; cultural differences; feeling abnormal, and functional impairment. Body image concerns were widespread although impacts on individual’s lives were dependent on the unique symptom profile of each disease which interacted with socio-cultural factors, daily functioning, and feminine identity. Body image concerns were a common, but hidden, experience rarely screened in routine clinical settings despite causing significant distress.

Conclusions

The chronicity and severity of individuals unique symptom profile often determined the intensity and type of body image concerns individuals described. Across conditions, body image concerns were often left untreated, were concealed, and were associated with reduced quality of life.

A meta-synthesis of qualitative literature on female chronic pelvic pain for the development of a core outcome set: a systematic review

INTRODUCTION AND HYPOTHESIS

Qualitative research has an increasing role in the development of core outcome sets (COS) adding patient perspectives to the considerations of core outcomes. We aimed to identify priorities of women with experience of chronic pelvic pain (CPP).

METHODS

The search strategy was a systematic review of qualitative studies identified from Cochrane Central Register of Controlled Trials (CENTRAL), CINAHL, EMBASE, MEDLINE and PsycInfo databases. Selection criteria were qualitative studies exploring the experience of women with CPP. Two independent researchers extracted data and summarized findings using thematic analysis. A CERQual assessment was performed to assess the confidence of review findings.

RESULTS

We identified pertinent issues affecting women with CPP including the lack of holistic care, influence of psychosocial factors and the impact of pain on quality of life. Five meta-themes central to delivering a patient-centred approach were highlighted: acceptance of pain, quality of life, management of CPP, communication and support. Management of CPP was the most commonly reported meta-theme across seven studies and half of studies reported quality of life, management, communication and support. Quality appraisal of included studies identified only a single study that met all CASP (Critical Appraisal Skills Programme) criteria. There was high confidence in the evidence for acceptance of pain, quality of life and communication meta-themes.

CONCLUSION

Meta-themes revealed by this review should be considered as a priority and reflected in outcomes reported by future studies evaluating interventions for CPP. In addition, these themes should be considered by clinicians managing women with CPP.

Living with endometriosis: a phenomenological study

Purpose: To explore and understand the lived experiences of women with endometriosis. Method: Qualitative study using Cohen phenomenology. Results: The data analysis identified four main themes and two sub-themes. The main themes are: delay in diagnosis, which includes the sub-theme of the misunderstanding of one's state; worsening of one's life, which includes the sub-theme of a painful life; disastrous intimate life with one's partner; and uncertainty about being able to have one's own children. Conclusions: The themes that emerged represent the starting point for further research and for the implementation of specific educational and support strategies that improve self-care, commitment and quality of life for women with endometriosis.

Responsiveness and thresholds for clinically meaningful changes in worst pain numerical rating scale for dysmenorrhea and nonmenstrual pelvic pain in women with moderate to severe endometriosis

OBJECTIVE

To evaluate the utility, responsiveness, and thresholds for clinically meaningful change of a numerical rating scale for worst pain associated with dysmenorrhea (NRS-DYS) and nonmenstrual pelvic pain (NRS-NMPP) in women with moderate to severe endometriosis-associated pain.

DESIGN

Analysis of data from two phase III randomized clinical trials (EM-I [NCT01620528] and EM-II [NCT01931670]).

SETTING

Not applicable.

PATIENT(S)

Premenopausal women ages 18-49 years with moderate to severe endometriosis-associated pain.

INTERVENTION(S)

Participants in both trials were randomized 3:2:2 to receive placebo, elagolix 150 mg once daily, or elagolix 200 mg twice daily for 6 months.

MAIN OUTCOME MEASURE(S)

NRS-DYS and NRS-NMPP.

RESULT(S)

EM-I enrolled 871 women and EM-II enrolled 815 women. For patients with a global impression of improvement at month 3, the least-squares mean change between baseline and month 3 was -3.6 (EM-I and EM-II) for NRS-DYS and -1.9 (EM-I) and -2.0 (EM-II) for NRS-NMPP. Standard errors of measurement were 2.99 (EM-I) and 2.86 (EM-II) for NRS-DYS and 1.74 (EM-I) and 1.71 (EM-II) for NRS-NMPP. Baseline half standard deviations were 0.78 (EM-I) and 0.85 (EM-II) for NRS-DYS and 0.92 (EM-I) and 0.96 (EM-II) for NRS-NMPP. Based on these results, clinically meaningful changes were defined as a reduction of 4 points for NRS-DYS and 2 points for NRS-NMPP.

CONCLUSION(S)

This study demonstrated the utility and responsiveness of separate numerical rating scales to assess worst pain for dysmenorrhea and NMPP in women with moderate to severe endometriosis-associated pain and identified initial thresholds for clinically meaningful change.

Development and content validation of two new patient-reported outcome measures for endometriosis: the Endometriosis Symptom Diary (ESD) and Endometriosis Impact Scale (EIS)

BACKGROUND

Endometriosis is a common, chronic, impactful condition in women of reproductive age. In the absence of established sensitive and specific biomarkers, disease severity is determined by patient-reported symptoms and impacts. This article details the development of two new patient-reported outcome (PRO) measures designed to assess efficacy endpoints in clinical studies: The Endometriosis Symptom Diary (ESD) and the Endometriosis Impact Scale (EIS).

METHODS

The ESD and EIS were developed according to best practice and scientific standards (including the Food and Drug Administration (FDA) PRO Guidance) and with extensive input from women with surgically-confirmed endometriosis. Research included: a review of published qualitative literature; concept elicitation interviews in the US, Germany and France (n = 45) to explore the experiences of women with endometriosis and to inform ESD and EIS development; and cognitive interviews in the US and Germany (n = 31) to assess relevance and understanding of the ESD and EIS and usability of administration using an electronic handheld device. The FDA and the European Medicines Agency (EMA) as well as PRO and clinical experts were consulted throughout the process.

RESULTS

Pelvic pain was identified as the most frequent, severe and bothersome symptom for women with endometriosis. Pain was reported to be greatest during menstruation (dysmenorrhea) and during or after sexual intercourse (dyspareunia). Pain resulted in significant impairments in physical activities, work/study, social/leisure activities, household activities and sexual functioning. All women highlighted the emotional impact of endometriosis. Descriptions of pain and associated impacts were largely consistent across participants from the US and Europe, with the most notable differences being the words used to describe the location of pain (e.g., 'pelvis' vs. 'abdomen'). Testing during cognitive interviews indicated that the ESD and EIS were well understood and consistently interpreted. Furthermore, all participants found the ePRO devices easy to use and no issues regarding visual presentation, selection of responses or navigation were identified.

CONCLUSIONS

Evidence from extensive qualitative research supports the content validity of the ESD and EIS as patient-reported measures of the disease-defining symptoms of endometriosis and the associated impact on women's lives. Future research will seek to establish the measurement properties of the measures.

A detailed profile of pain in severe endometriosis

Objective:

To investigate the detailed nature of pain symptoms reported by women with endometriosis and those without current gynecological complaint.

Design:

Self-administered cross-sectional study was conducted using a structured questionnaire.

Setting:

Teaching hospital clinic, specialist gynecologist, and family practice patients; endometriosis community support group members; and university staff and students.

Subjects:

A total of 737 women returned completed surveys: women with endometriosis ( n = 529) and with no current gynecological complaint ( n = 208).

Intervention(s):

None.

Main outcome measure(s):

Demographics, experience of pain symptoms: frequency, severity, and characteristics.

Results:

All pain symptoms were significantly more common among women with endometriosis compared with controls. Women with endometriosis all reported experiencing dysmenorrhea to some degree ( N = 527, two missing), although the severity was “slight” for 5%. Dyspareunia was reported by 92% of women with endometriosis, most commonly during intercourse, rather than at the start or post-coital. The other pain symptoms experienced by women with endometriosis, in order of frequency, were lower back pain (93%), pain at ovulation (87%), pelvic pain other than during menses, ovulation, urination or intercourse (79%), dysuria (71%), and rectal pain (67%). The great majority of women with endometriosis reported multiple sources and types of pain. Among women with endometriosis there were clear associations between the severity of dysmenorrhea and the frequency of experiencing dyspareunia and other pain symptoms.

Conclusion:

Pain symptoms in women with endometriosis were generally much more extensive and complex than recognized by most clinicians.

Feelings and expectations in endometriosis: Analysis of open comments from a cohort of endometriosis patients

INTRODUCTION

Endometriosis symptoms may have a negative effect on health-related quality of life (HRQoL). Analyses of open comments are known to be a key source of information and support. The authors aimed to analyse open comments associated with a validation scale study, in order to ascertain whether the questionnaires allowed an adequate exploration of patient preoccupations and in so doing define important quality of life themes not assessed in HRQoL scales.

MATERIAL AND METHODS

Analysis of open comments, following two questionnaires (SF-36 and EHP-30) as part of a national study evaluating the EHP-30, was performed. Questionnaires were distributed online, via a link to the RedCap Internet platform. The association EndoFrance, a support group for endometriosis patients, notified women of the launching of the study. Women were asked to complete the questionnaire and had the opportunity to comment. Comments were gathered, coded systematically, and categorised by theme.

RESULTS

Of the 1156 women who responded to the questionnaire, 913 (79.0%) declared having a confirmed surgical diagnosis of endometriosis, and 265 comments were analysed. Comments were classified in 20 themes. Correspondence between the themes and items for both questionnaires and the open comments was investigated for all topics, including those non-addressed by the questionnaires. 8 themes are not mentioned in both questionnaires, 9 themes are covered by EHP-30, two by SF-36 and only one by both.

CONCLUSION

Anonymous data collection and subsequent analysis proves to be an effective and practical way of obtaining patient opinion on their pathology. Analysis of comments may provide additional and useful information to the classical HRQoL Scale.

Behavioral, cognitive, and emotional coping strategies of women with endometriosis: a critical narrative review

Endometriosis is a disabling and long-term medical condition affecting quality of life and mental health. Behavioral, cognitive, and emotional coping strategies, emotional intelligence, and metacognition could in part explain the link between the disease and impaired psychological and life functioning. This critical narrative review aimed at examining the state of the art of the relationships between endometriosis and these factors. According to PRISMA principles, we performed a systematic search for quantitative and qualitative studies on multiple electronic databases as regards coping strategies, emotional intelligence, and metacognition in women with endometriosis. Studies were subjected to interpretative and critical narrative synthesis. A total of 9 papers were included in the review. Three main categories were identified in thematic analysis and resumed in the manuscript. Findings suggested that (a) pain is considered the major stressor; (b) they usually use both adaptive and maladaptive coping strategies; (c) women with endometriosis and related chronic pain seem to repress emotions more likely than healthy ones; (d) suppressing own emotions, pain catastrophizing, and having a passive coping style are related to higher self-reported pain; and (e) emotional and avoidance coping styles are associated to poor mental status, while positive coping strategies focusing on the problem or on emotions, detached and rational styles are associated to better mental health. Few studies with mixed results and some methodological flaws have focused on coping strategies in women with endometriosis. No studies focusing on metacognition or emotional intelligence were found. Methodological biases, suggestions for future research, and implications for clinical practice were discussed.

Qualitative meta-synthesis: the experience of chronic pain across conditions

AIM

To synthesize qualitative descriptions of the experience of chronic pain across conditions.

BACKGROUND

Chronic pain is a transdiagnostic symptom in that while somatic pathology plays a role in activating pain pathways, psychological and social factors contribute to the experience of pain over time. The treatment of the underlying condition may require both biomedical intervention and biopsychosocial approaches.

DESIGN

Qualitative meta-synthesis using Confidence in the Evidence from Reviews of Qualitative Research (CERQual) developed by Grading of Recommendations Assessment Development and Evaluation (GRADE) working group to evaluate the strength of the evidence.

DATA SOURCES

PubMed and Ovid Medline from 2000-2015.

REVIEW METHODS

Following a systematic search strategy all papers were assessed in relation to inclusion criteria and quality. Themes were extracted from each study and a meta-synthesis conducted before completing an evaluation of confidence in the findings.

RESULTS

Forty-one papers exploring the experience of chronic pain were included in the review. Five meta-themes were identified across the studies: 1) the body as obstacle; 2) invisible but real; 3) disrupted sense of self; 4) unpredictability; and 5) keeping going. There was high confidence in the evidence for three themes: 'the body as obstacle'; 'disrupted sense of self' and 'keeping going'; and moderate confidence in the evidence for 'invisible but real' and 'unpredictability'.

CONCLUSIONS

The findings in this review suggest there are similarities in the experience of chronic pain across a range of conditions that have implications for the development of transdiagnostic pain management strategies and interventions.

Impact of endometriosis on women's lives: a qualitative study

BACKGROUND

This study aimed to explore women's experiences of the impact of endometriosis and whether there are differences across three age groups.

METHODS

A qualitative descriptive design was conducted using semi-structured focus group discussions with 35 Australian women with endometriosis, in three age groups. All tape-recorded discussions were transcribed verbatim and read line by line to extract meaningful codes and categories using NVivo 9 software through a thematic analysis approach. Categories were then clustered into meaningful themes.

RESULTS

Participants' ages ranged from 17 to 53 years and had a history of 2 to 40 years living with endometriosis, with an average delay time to diagnosis of 8.1 years. Two main themes emerged: (1) experiences of living with endometriosis, and (2) impact of endometriosis on women's lives, with 14 discrete categories. The results showed similarities and differences of the impact between the three age groups. The most highlighted impacts were on marital/sexual relationships, social life, and on physical and psychological aspects in all three age groups, but with different orders of priority. Education was the second most highlighted for the 16-24 years, life opportunities and employment for the 25-34 years; and financial impact for those 35 years and above.

CONCLUSIONS

Our findings show that endometriosis impacts negatively on different aspects of women's lives. A better understanding of these findings could help to decrease the negative impact of endometriosis by guiding service delivery and future research to meet more effectively the needs of women and teenagers with this condition.

Women's experiences of endometriosis: a systematic review and synthesis of qualitative research

BACKGROUND

Endometriosis is experienced by approximately 10% of women worldwide; it is associated with significant burden on the woman, her family, and society.

AIM

The aim of this systematic review was to synthesise the available qualitative literature to increase our understanding of the effects of endometriosis on women's lives.

METHODS

Seven social science and medical databases (PubMed, Medline, CINAHL, Web of Science, ScienceDirect, PsycInfo and Embase) and Google Scholar were searched for peer-reviewed papers published in English of research using qualitative methods.

RESULTS AND CONCLUSIONS

Eighteen papers reporting 11 studies met the inclusion criteria. Participant numbers ranged from 15 to 61 women, all recruited from support groups and specialised clinics. Studies were conducted in high-income, Anglophone countries. The review identified four prominent themes: Life, Symptoms, Medical Experience, and Self. Women's reported experiences demonstrated opportunities for enhancing current clinical practice, including improved education about endometriosis for health professionals, the need to take a comprehensive approach to pain treatment, and initiating appropriate discussion of the impact on sex life. Significant evidence gaps were identified: there was inadequate investigation of women's experiences of endometriosis-associated infertility and of the impact of reduced social participation on perceived support and emotional well-being, and limited or no inclusion of the experiences of adolescent and post-menopausal women, women from low socioeconomic backgrounds, women who do not identify as Caucasian, and non-heterosexual women.

Patients' and physicians' descriptions of occurrence and diagnosis of endometriosis: a qualitative study from Iran

Background

The prevalence of endometriosis is considerable but its diagnosis is a dilemma. The aim of this study was to explore the perception and experiences of endometriosis patients and physicians about occurrence and diagnosis of endometriosis.

Methods

A qualitative research using content analysis was used to obtain data from purposely selected endometriosis patients (12 participants) and gynecologists (6 participants) from January to September 2013 in Tehran. Data were coded and analyzed using a thematic approach.

Results

Seven themes emerged: 1) pain localization, 2) Severity of pain and struggle for pain relief, 3) Feeling inability to play the role of femininity, 4) Reducing physical health, 5) Disruption of social life, 6) Looking for a reliable diagnostic indicator, 7) Uncertainty of physical examination. The results highlighted that patients with the disease can experience different feelings that interfere with their wellbeing and their lives, and sometimes could be disabling.

Conclusion

Patients and physicians are looking for a certain, noninvasive and inexpensive diagnostic method. This study helps to promote clinical diagnostic view and knowledge development about description of endometriosis diagnosis to decrease diagnostic delay and mismanagement.

A meta-ethnography of patients' experiences of chronic pelvic pain: struggling to construct chronic pelvic pain as 'real'

AIM

To review systematically and integrate the findings of qualitative research to increase our understanding of patients' experiences of chronic pelvic pain.

BACKGROUND

Chronic pelvic pain is a prevalent pain condition with a high disease burden for men and women. Its multifactorial nature makes it challenging for clinicians and patients.

DESIGN

Synthesis of qualitative research using meta-ethnography.

DATA SOURCES

Five electronic bibliographic databases from inception until March 2014 supplemented by citation tracking. Of 488 papers retrieved, 32 met the review aim.

REVIEW METHODS

Central to meta-ethnography is identifying 'concepts' and developing a conceptual model through constant comparison. Concepts are the primary data of meta-ethnography. Two team members read each paper to identify and collaboratively describe the concepts. We next compared concepts across studies and organized them into categories with shared meaning. Finally, we developed a conceptual model, or line of argument, to explain the conceptual categories.

RESULTS

Our findings incorporate the following categories into a conceptual model: relentless and overwhelming pain; threat to self; unpredictability, struggle to construct pain as normal or pathological; a culture of secrecy; validation by diagnosis; ambiguous experience of health care; elevation of experiential knowledge and embodiment of knowledge through a community.

CONCLUSION

The innovation of our model is to demonstrate, for the first time, the central struggle to construct 'pathological' vs. 'normal' chronic pelvic pain, a struggle that is exacerbated by a culture of secrecy. More research is needed to explore men's experience and to compare this with women's experience.

Economic burden of surgically confirmed endometriosis in Canada

OBJECTIVE

To estimate the societal economic burden of illness caused by surgically confirmed endometriosis in Canada in 2009, including direct health care costs, lost productivity, and lost leisure time costs.

METHODS

Using a cross-sectional design, direct health care resource use data were obtained from nine family physicians and nine gynaecologists from across Canada, who were experienced in the treatment of women with surgically confirmed endometriosis. Data on alternative treatments and health care providers, as well as work absenteeism, lost leisure time, and caregiver time were obtained from a convenience sample of 27 women with endometriosis treated at two gynaecology clinics in Alberta and Quebec. Unit costs were assigned to resource use items for treatment-seeking patients, and total costs for each resource use item were aggregated to estimate the societal costs of endometriosis in Canada in 2009, across all prevalent cases of surgically confirmed endometriosis.

RESULTS

The estimated mean annual societal cost of endometriosis was $5,200 per patient (95% CI $3,700 to $7,100), with lost productivity and lost leisure time costs accounting for 78%. Extrapolating these figures yields an estimated total annual cost to Canadian society of $1.8 billion (95% CI $1.3 billion to $2.4 billion) attributable to surgically confirmed endometriosis in Canada.

CONCLUSION

For some women, surgically confirmed endometriosis has a substantial negative impact that can result in suffering to the individual and her family, and lead to substantial productivity losses. Understanding the interplay between direct costs, lost productivity, and quality of life is critical for accurately identifying and evaluating effective treatments for this condition.

Coping with endometriosis

Endometriosis not only has physical implications for women but also may affect their sexuality, self-image, and hopes for childbearing. This article discusses the role of parish nurses in a community faith-based setting collaborating to provide comprehensive care for women who are diagnosed with endometriosis. Physical, emotional, and spiritual dimensions of care are highlighted. Traditional and complimentary treatments are described. Examples of outcomes for women in the described program are included in case study exemplars.

Patients' report on how endometriosis affects health, work, and daily life

The objective of this study was to assess the burden of endometriosis by obtaining patient-reported outcome data describing the experience of living with this disease. Survey data from 107 women with self-reported, surgically diagnosed endometriosis showed that living with this disease may be characterized by physical limitations that disrupt health, work, and daily life.

Extending an evidence hierarchy to include topics other than treatment: revising the Australian 'levels of evidence'

Background

In 1999 a four-level hierarchy of evidence was promoted by the National Health and Medical Research Council in Australia. The primary purpose of this hierarchy was to assist with clinical practice guideline development, although it was co-opted for use in systematic literature reviews and health technology assessments. In this hierarchy interventional study designs were ranked according to the likelihood that bias had been eliminated and thus it was not ideal to assess studies that addressed other types of clinical questions. This paper reports on the revision and extension of this evidence hierarchy to enable broader use within existing evidence assessment systems.

Methods

A working party identified and assessed empirical evidence, and used a commissioned review of existing evidence assessment schema, to support decision-making regarding revision of the hierarchy. The aim was to retain the existing evidence levels I-IV but increase their relevance for assessing the quality of individual diagnostic accuracy, prognostic, aetiologic and screening studies. Comprehensive public consultation was undertaken and the revised hierarchy was piloted by individual health technology assessment agencies and clinical practice guideline developers. After two and a half years, the hierarchy was again revised and commenced a further 18 month pilot period.

Results

A suitable framework was identified upon which to model the revision. Consistency was maintained in the hierarchy of "levels of evidence" across all types of clinical questions; empirical evidence was used to support the relationship between study design and ranking in the hierarchy wherever possible; and systematic reviews of lower level studies were themselves ascribed a ranking. The impact of ethics on the hierarchy of study designs was acknowledged in the framework, along with a consideration of how harms should be assessed.

Conclusion

The revised evidence hierarchy is now widely used and provides a common standard against which to initially judge the likelihood of bias in individual studies evaluating interventional, diagnostic accuracy, prognostic, aetiologic or screening topics. Detailed quality appraisal of these individual studies, as well as grading of the body of evidence to answer each clinical, research or policy question, can then be undertaken as required.