"What's Sex and Gender Got to Do With It?" A Scoping Review of Sex- and Gender-Based Analysis in Pharmacoepidemiologic Studies of Medication Adherence

Bridging the gap: Time to integrate sex and gender differences into research and clinical practice for improved health outcomes

The integration of sex and gender in medical research and clinical practice is increasingly recognized as a cornerstone for achieving equitable health outcomes. Biological sex and gender influence the manifestation, progression, and treatment response in numerous diseases. Biological sex influences health and disease outcomes through genetic, hormonal, and physiological factors, while gender impacts them via identity, societal roles and behaviors. Historically, medical research has focused predominantly on the male body, leading to diagnostic and therapeutic gaps for women and gender-diverse populations. In particular, women remain underrepresented in clinical trials, leading to suboptimal treatment strategies and outcomes. In addition, in many conditions, such as cardiovascular, metabolic and neurological diseases, sex-specific variations in risk factors and disease presentation are prominent. The present review discusses the critical importance of distinguishing between sex and gender in preclinical and clinical research, and the necessity of incorporating these variables across all stages of research, from study design to analysis and reporting of preclinical studies and clinical trials. By incorporating sex and gender as distinct but interacting variables, we propose a framework to advance health equity and foster personalized, inclusive healthcare. This approach will promote the development of gender-sensitive clinical guidelines, enhance the accuracy of diagnostic tools, and ultimately contribute to improved health outcomes for all individuals, regardless of their sex or gender identity.

Attitudes and Experiences of Patients Regarding Gender-Specific Aspects of Pain Management

BACKGROUND

Biological, pharmacological, and socio-cultural aspects influence gender-specific effects in pain management.

METHODS

Gender-specific aspects of pain management were assessed in a rural outpatient center via semi-structured patient interview: (i) general gender aspects (total population) from 1 = "fully disagree" to 5 = "fully agree"; and (ii) individual pain (matched pairs) via numeric analog scale (NAS) from 0 = "no pain" to 10 = "maximum pain". Patient charts were assessed for pain management (WHO-ladder).

RESULTS

In total, 113 patients were enrolled (59.18 [SD: 12.76] years, 46% female, 54% male, 0% diverse), and 42 were matched into female-male pairs. (i) Women and men agreed that men and women should be treated equally despite biological differences (median: 5 [women] vs. 5 [men]; p = 0.789). As a reason for gender-specific aspects, "medication concentration" was reported more frequently by women (p = 0.038) and "no answer" by men (p = 0.014). (ii) Mean value (SD) of pain (NAS) was 4.0 (SD 2.3) for women and 3.3 (SD 2.6) for men (p = 0.215) with a positive correlation between pain management escalation (WHO-ladder) and the pain score (NAS) only in men (r = 0.704, p = 0.001). Women rather reported an influence of adverse drug reactions on treatment contentment than men (p = 0.042).

CONCLUSIONS

Although patients pleaded for gender-independent equal treatment, gender-specific differences in pain therapy were found.

Self-medication among general population in the European Union: prevalence and associated factors

Self-medication (SM) forms an important part of public health strategy. Nonetheless, little research has been performed to understand the current state of self-medication in the European Union (EU). Utilizing data from the third wave of the European Health Interview Surveys, this study finds an estimated SM prevalence of 34.3% in the EU (95%CI = 34.1-34.5%; n = 255,758). SM prevalence, as well as SM prevalence inequality between men and women, varies substantially between EU member countries. Via multivariable analysis, we also identify a number of variables associated with SM, most notably the substantial impact of health systems on SM behavior (Adjusted Odds Ratio [AOR] = 4.00; 95% Confidence Interval [95%CI] = 3.81-4.21). Several demographics are also associated with greater SM prevalence, including those aged 25-44 (versus ages 75+: AOR = 1.21; 95%CI = 1.12-1.31), women (AOR = 1.74; 95%CI = 1.68-1.81), immigrants born in other EU states (AOR = 1.16; 95%CI = 1.04-1.30), those with higher education (AOR = 1.83; 95%CI = 1.60-2.09), and urban dwellers (AOR = 1.14; 95%CI = 1.04-1.30). Additionally, long-standing health problems (AOR = 1.39; 95%CI = 1.33-1.45), visits to doctors (both general practitioners and specialists) (AOR = 1.21, 95%CIs = 1.15-1.26, 1.17-1.26), and unmet needs for health care due to waiting lists (AOR = 1.38; 95%CI = 1.23-1.55) or inability to afford medical examinations/treatment (AOR = 1.27; 95%CI = 1.12-1.42) serve as conditioners for SM. We also find that smoking (AOR = 1.05; 95%CI = 1.01-1.10), vaping (AOR = 1.19; 95%CI = 1.06-1.32), drinking alcohol (AOR = 1.23; 95%CI = 1.19-1.28), and higher levels of physical activity (AOR = 1.27; 95%CI = 1.22-1.32) are factors associated with SM. Analysis of these variables reveals that though women self-medicate more than men, the patterns that govern their consumption are similar.

Women and opioid use disorder treatment: A scoping review of experiences, use of patient-reported experience measures, and integration of person-centred care principles

BACKGROUND

Patient-reported experience measures (PREMs) are an important aspect of assessing and improving women's experiences of person-centred care during treatment for Opioid Use Disorder (OUD). This scoping review aimed to 1) examine the extent, type, and characteristics of evidence regarding women's OUD treatment experiences, and 2) describe the extent to which PREMs and person-centred care principles are incorporated within research methods.

METHODS

Following Joanna Briggs Institute guidelines and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR), we conducted a scoping review to identify peer-reviewed articles on women's OUD treatment experiences. Data were extracted from 39 included studies and synthesised based on study design, method of assessment/analysis (including use of PREMs), key findings, and the integration of person-centred care principles.

RESULTS

Analysis of included studies revealed a predominance of qualitative research focused on women's experiences of pharmacological OUD treatment (methadone and/or buprenorphine) in Western countries. Women in these studies reported predominantly negative or mixed experiences of treatment. Few studies used validated PREMs and there was a lack of direct assessment or focus on recognised person-centred care principles. However, common categories of outcomes/findings identified in results across studies broadly aligned with person-centred care principles (e.g., fast access to reliable healthcare, effective treatment by trusted professionals), emphasising their applicability to women's experiences of treatment.

CONCLUSIONS

Although there has been an increased focus on women's experiences of treatment for OUD in recent years, results highlighted room for improvement regarding the systematic and comprehensive assessment of women's experiences across different contexts. Given the often negative or mixed experiences reported by women, an increased focus on assessing service provision through a person-centred care lens (including utilising PREMs) may allow for service improvements or adaptations targeted towards the needs and experiences of women.

Medication Adherence of Older Adults with Hypertension: A Systematic Review

Objective

Hypertension (HTN) significantly increases the risk of stroke and heart disease, which are the leading causes of death and disability globally, particularly among older adults. Antihypertensive medication is a proven treatment for blood pressure control and preventing complications. However, medication adherence rates in older adults with HTN are low. In this review, we systematically identified factors influencing medication adherence in older adults with HTN.

Methods

We applied the PRISMA guidelines and conducted systematic searches on PubMed, MEDLINE, and Google Scholar in July 2022 to identify preliminary studies reporting factors influencing medication adherence among older adults with HTN. The convergent integrated analysis framework suggested by the Joanna Briggs Institute for systematic reviews was adopted for data synthesis.

Results

Initially, 448 articles were identified, and after title and abstract screening, 16 articles qualified for full-text review. During this phase, three articles were excluded for reporting on irrelevant populations or focusing on issues beyond the review's aim, leaving thirteen studies in the final review. After data synthesis, fifteen themes were extracted from the key findings of the included studies. The most prevalent themes included the number of medications used (53.9%, n=7 studies), financial status (38.5%, n=5), sex (38.5%, n=5), age (30.1%, n=4), duration of disease (23.1%, n=3), comorbidities (23.1%, n=3), and health compliance (23.1%, n=3). Other themes, such as education, health literacy, health belief, medication belief, perception of illness, patient-physician relationship, self-efficacy, and social support, were also identified.

Conclusion

The findings of this review highlight critical areas for developing innovative, evidence-based programs to improve medication adherence in hypertensive older adults. Insights from this review can contribute to improving medication adherence and preventing future health complications.

Evaluation of methods measuring medication adherence in patients with polypharmacy: a longitudinal and patient perspective

PURPOSE

To explore patients' willingness to have medication adherence measured using different methods and evaluate the feasibility and validity of their combination (i.e., pill counts, a medication diary and a questionnaire assessing adherence two months post-discharge).

METHODS

(1) A cross-sectional evaluation of the willingness of patients with polypharmacy to have their medication adherence measured post-discharge. (2) Medication adherence was monitored during two months using pill counts based on preserved medication packages and a diary in which patients registered their adherence-related problems. During a home visit, the Probabilistic Medication Adherence Scale (ProMAS) and a questionnaire on feasibility were administered.

RESULTS

A total of 144 participants completed the questionnaire at discharge. The majority was willing to communicate truthfully about their adherence (97%) and to share adherence-related information with healthcare providers (99%). More participants were willing to preserve medication packages (76%) than to complete a medication diary (67%) during two months. Most participants reported that preserving medication packages (91%), completing the diary (99%) and the ProMAS (99%) were no effort to them. According to the majority of participants (60%), pill counts most accurately reflected medication adherence, followed by the diary (39%) and ProMAS (1%). Medication adherence measured by pill counts correlated significantly with ProMAS scores, but not with the number of diary-reported problems. However, adherence measured by the medication diary and ProMAS correlated significantly.

CONCLUSION

Combining tools for measuring adherence seems feasible and can provide insight into the accordance of patients' actual medication use with their prescribed regimen, but also into problems contributing to non-adherence.

Reflecting on Progress in and Establishing Benchmarks for Sex and Gender Health Education

ABSTRACT

Sex and gender influence every aspect of human health; thus, sex- and gender-related topics should be incorporated in all aspects of health education curricula. Sex and gender health education (SGHE) is the rigorous, intersectional, data-driven integration of sex and gender into all elements of health education. A multisectoral group of thought leaders has collaborated to advance SGHE since 2012. This cross-sector collaboration to advance SGHE has been successful on several fronts, primarily developing robust interprofessional SGHE programs, hosting a series of international SGHE summits, developing sex- and gender-specific resources, and broadening the collaboration beyond medical education. However, other deeply entrenched challenges have proven more difficult to address, including accurate and consistent sex and gender reporting in research publications, broadening institutional support for SGHE, and the development and implementation of evaluation plans for assessing learner outcomes and the downstream effects of SGHE on patient care. This commentary reflects on progress made in SGHE over the first decade of the current collaboration (2012-2022), articulates a vision for next steps to advance SGHE, and proposes 4 benchmarks to guide the next decade of SGHE: (1) integrate sex, gender, and intersectionality across health curricula; (2) develop sex- and gender-specific resources for health professionals; (3) improve sex and gender reporting in research publications; and (4) develop evaluation plans to assess learner and patient outcomes.