Conducting experimental research in marginalised populations: clinical and methodological implications from a mixed-methods randomised controlled trial in Kenya.

Experimental studies to test interventions for people living with HIV in low- and middle-income countries are essential to ensure appropriate and effective clinical care. The implications of study participation on outcome data in such populations have been discussed theoretically, but rarely empirically examined. We aimed to explore the effects of participating in a randomised controlled trial conducted in an HIV clinic in Mombasa, Kenya. We report qualitative data from the Treatment Outcomes in Palliative Care trial, which evaluated the impact of a nurse-led palliative care intervention for HIV positive adults on antiretroviral therapy compared to standard care. Participants in both arms attended five monthly quantitative data collection appointments. Post-trial exit, 10 control and 20 intervention patients participated in semi-structured qualitative interviews, analysed using thematic analysis. We found benefit attributed to the compassion of the research team, social support, communication, completion of patient reported outcome measures (PROMs) and material support (transport reimbursement). Being treated with compassion and receiving social support enabled participants to build positive relationships with the research team, which improved mental health and well-being. Open and non-judgmental communication made participants feel accepted. Participants described how repeated completion of the PROMs was a prompt for reflection, through which they began to help themselves and self-care. Participant reimbursements relieved financial hardship and enabled them to fulfil their social responsibilities, enhancing self-worth. These findings emphasise the importance of compassion, support and effective communication in the clinical encounter, particularly in stigmatised and isolated populations, and the potential of the integration of simple PROMs to improve patient outcomes. Participation in research has unexpected positive benefits for participants, which should be taken into account when designing research in similar populations. Researchers should be aware of the effects of financial reimbursement and contact with researchers in isolated and impoverished communities.

Wellbeing among sub-Saharan African patients with advanced HIV and/or cancer: an international multicentred comparison study of two outcome measures.

BACKGROUND: Despite the high mortality rates of HIV and cancer in sub-Saharan Africa, there are few outcome tools and no comparative data across conditions. This study aimed to measure multidimensional wellbeing among advanced HIV and/or cancer patients in three African countries, and determine the relationship between two validated outcome measures. METHODS: Cross-sectional self-reported data from palliative care populations in Kenya, Uganda and South Africa using FACIT-G+Pal and POS measures. RESULTS: Among 461 participants across all countries, subscale "social and family wellbeing" had highest (best) score. Significant country effect showed lower (worse) scores for Uganda on 3 FACIT G subscales: Physical, Social + family, and functional. In multiple regression, country and functional status accounted for 21% variance in FACIT-Pal. Worsening functional status was associated with poorer POS score. Kenyans had worse POS score, followed by Uganda and South Africa. Matrix of correlational coefficients revealed moderate correlation between the POS and FACIT-Pal core scale (0.60), the FACIT-G and POS (0.64), and FACIT-G + Pal with POS (0.66). CONCLUSIONS: The data reveal best status for family and social wellbeing, which may reflect the sample being from less individualistic societies. The tools appear to measure different constructs of wellbeing in palliative care, and reveal different levels of wellbeing between countries. Those with poorest physical function require greatest palliative and supportive care, and this does not appear to differ according to diagnosis.

A psychometric evaluation of the functional assessment of chronic illness therapy-palliative care (FACIT-Pal) scale with palliative care samples in three African countries.

CONTEXT: Although sub-Saharan Africa suffers the greatest burden of progressive illness, there are few outcome measures with adequate properties to measure needs and outcomes. OBJECTIVES: To examine the psychometric properties of the Functional Assessment of Chronic Illness Therapy-Palliative Care (FACIT-Pal) among people receiving palliative care in three African countries. METHODS: Adult patients in South Africa, Kenya, and Uganda gave self-reported data to the core FACIT-G plus Pal subscale. Data were subjected to factor analysis, corrected item-total correlations, and Cronbach's α for full scale and subscales. RESULTS: The resulting four factors bear a strong similarity to the original Functional Assessment of Cancer Therapy-General in our sample of 461: physical symptoms, functional well-being, friends and family, and emotional well-being. Cronbach's α for the full 27-item scale was 0.90 and for the physical well-being, social/family well-being, emotional well-being, and functional well-being subscales, it was 0.83, 0.78, 0.80, and 0.87, respectively. Varimax rotation of the 19-item FACIT-Pal scale showed three clear interpretable factors. Factor 1, a sense of purpose and meaning in life; Factor 2, physical symptoms; and Factor 3, social integration. For the 19-item FACIT-Pal, Cronbach's α was 0.81, and individual corrected item-total correlations ranged from 0.24 to 0.61. Cronbach's α for the eight items comprising Factor 1 (meaning in life) was 0.83. For the other two factors, it was 0.70 (physical symptoms, six items) and 0.68 (social integration, three items). CONCLUSION: The FACIT-Pal is a reliable multidimensional scale for people with life-limiting incurable diseases in sub-Saharan Africa, and the observed factors are interpretable and clinically meaningful.