Institutional Arrangements for Providing HIV and AIDS Services in Uganda: A Transaction Cost Economics Analysis.

Transaction cost economics (TCE) theory predicts that features of institutional arrangements determine the intensity of their governance instruments. Consequently, institutional features link to transaction costs, but the linkages have received little attention in the public health literature. This study sought to address this gap. It examined the governance features of institutional arrangements and their transaction cost implications for providing HIV prevention and social support services in Uganda. The analysis was based on 4 proposed TCE governance instruments: administrative controls, adaptation, incentives and contract laws. These governance instruments were assessed in 3 modes of delivery( institutional arrangments) for HIV and AIDS Services in Uganda: Contracting-Out - the case of DREAMS (Determined, Resilient, Empowered, AIDS-free, Mentored and Safe); a Public-Non-Governmental Organisation (NGO) partnership - the case of the CHAI (Community-led HIV/AIDS Initiative); and direct Public Sector Delivery. These assessed delivery modes follow Williamson's TCE framework of 3 institutional arrangements to deliver goods and services, notably market, hybrid (partnership) and internal (hierarchy) delivery, with related governance features. Within this framework, the discriminating alignment hypothesis guided the analysis. According to the hypothesis, the delivery modes of goods and services result in smaller transaction costs when their governance features are as predicted by TCE. The hypothesis was assessed by analysing, with qualitative methods, the differences in HIV and AIDS services characteristics across the 3 arrangements and their differences with theory prediction, and hence the difference in transaction cost implications. The study found that the delivery arrangements that minimised cost are those whose HIV and AIDS services were aligned with the TCE theory prediction. The aligned 'public-NGO partnership' arrangement (CHAI) had fewer sources of transactional costs than the misaligned arrangements - 'contracting-out' (DREAMS) and 'public sector'. The analysis revealed that the DREAMS and public sector delivery models suffered some flaws in efficiencies. DREAMS had high administrative controls, high-powered tangible incentive intensity and intensive monitoring mechanisms for performance adaptation due to the lack of 'trust' on the part of the financing agency, contrary to the TCE prediction. In contrast with the TCE prediction, low administrative controls in the public sector arose from the failure to invest in performance monitoring systems. The high-powered incentive intensity and low administrative controls observed in the CHAI arrangement primarily stemmed from the reliance on informal institutions (trust, social expectations and reputation) rather than principal-agent arms-length sanctions. These results suggest that the level of transaction costs is associated with features of institutional arrangements. The valuable insights from TCE could contribute to policymaking during the design of institutional arrangements to efficiently deliver HIV and AIDS services.

'He said, she said': assessing dyadic agreement of reported sexual behaviour and decision-making among an HIV sero-discordant couples cohort in Uganda.

BACKGROUND: The intimate nature of sexuality makes it challenging to accurately measure sexual behaviour. To assess response reliability, we examined agreement between couples in heterosexual HIV sero-discordant partnership on survey questions regarding condom use and sexual decision-making. METHODS: Data for this analysis come from baseline data from a cohort study of HIV sero-discordant couples in Jinja, Uganda. We examined the degree of agreement between male and female partners on standard measures of sexual behaviour using the kappa (κ) statistic and 95% confidence intervals (95% CIs). RESULTS: Among 409 couples, the median age for the male partner was 41 [interquartile range (IQR) 35-48] years and the female partner was 35 (IQR 30-40) years. Among 58.2% of the couples, the male was the HIV-positive partner. Questions with high or substantial couple agreement included condom use at last sex (κ=0.635, 95% CI 0.551-0.718) and frequency of condom use (κ=0.625, 95% CI 0.551-0.698). Questions with low or fair couple agreement included decision-making regarding condom use (κ=0.385, 95% CI 0.319-0.451), wanting more biological children (κ=0.375, 95% CI 0.301-0.449) and deciding when to have sex (κ=0.236, 95% CI 0.167-0.306). CONCLUSIONS: Survey questions assessing condom use had the highest level of couple agreement and questions regarding sexual decision-making and fertility desire had low couple agreement. Questions with high agreement have increased reliability and reduced measurement bias; however, questions with low agreement between couples identify important areas for further investigation, particularly perceived relationship control and gender differences.

Multi-level Correlates of Safer Conception Methods Awareness and Attitudes Among Ugandan HIV Clients with Fertility Intentions.

Many people living with HIV desire childbearing, but low cost safer conception methods (SCM) such as timed unprotected intercourse (TUI) and manual self-insemination (MSI) are rarely used. We examined awareness and attitudes towards SCM, and the correlates of these constructs among 400 HIV clients with fertility intentions in Uganda. Measures included awareness, self-efficacy, and motivation regarding SCM, as well as demographics, health management, partner and provider characteristics. Just over half knew that MSI (53%) and TUI (51%) reduced transmission risk during conception, and 15% knew of sperm washing and pre-exposure prophylaxis. In separate regression models for SCM awareness, motivation, and self-efficacy, nearly all independent correlates were related to the partner, including perceived willingness to use SCM, knowledge of respondent's HIV status, HIV-seropositivity, marriage and equality in decision making within the relationship. These findings suggest the importance of partners in promoting SCM use and partner inclusion in safer conception counselling.

Safer Conception Methods and Counseling: Psychometric Evaluation of New Measures of Attitudes and Beliefs Among HIV Clients and Providers.

With data from 400 HIV clients with fertility intentions and 57 HIV providers in Uganda, we evaluated the psychometrics of new client and provider scales measuring constructs related to safer conception methods (SCM) and safer conception counselling (SCC). Several forms of validity (i.e., content, face, and construct validity) were examined using standard methods including exploratory and confirmatory factor analysis. Internal consistency was established using Cronbach's alpha correlation coefficient. The final scales consisted of measures of attitudes towards use of SCM and delivery of SCC, including measures of self-efficacy and motivation to use SCM, and perceived community stigma towards childbearing. Most client and all provider measures had moderate to high internal consistency (alphas 0.60-0.94), most had convergent validity (associations with other SCM or SCC-related measures), and client measures had divergent validity (poor associations with depression). These findings establish preliminary psychometric properties of these scales and should facilitate future studies of SCM and SCC.

Attitudes, Knowledge, and Correlates of Self-Efficacy for the Provision of Safer Conception Counseling Among Ugandan HIV Providers.

High rates of childbearing desires (59%) and serodiscordant partnerships (50%) among people living with HIV (PHLA) in Uganda highlight the need for safer conception counseling (SCC). Provider attitudes about counseling PLHA on the use of safer conception methods (SCM) have been explored in qualitative studies, but published quantitative investigations are scarce. Data from 57 Ugandan providers were collected to examine providers' attitudes about childbearing among PLHA and engagement in discussions about childbearing, as well as their knowledge, interest, self-efficacy, and intentions to provide SCC. Correlates of self-efficacy for the provision of SCC were explored to inform the development of training programs. Providers reported a general awareness of most SCM, especially timed unprotected intercourse (TUI); but just over half felt they knew enough to counsel clients in the future and all wanted more training. Childbearing was discussed with less than a third of reproductive aged patients and was mostly initiated by patients. Most providers saw value in providing SCC and believed that most aspects of SCM would be acceptable to their clients, but numerous barriers were endorsed. Self-efficacy was greatest among providers who had had more childbearing conversations, greater SCM awareness, perceived fewer barriers and greater intentions to counsel on TUI. Providers evidence fewer stigmatizing attitudes than in the past. However, those who endorsed more stigmatizing attitudes evidenced a trend for reporting lower self-efficacy for providing SCC. Training will need to simultaneously focus on increasing providers' SCC knowledge and skills while instilling a more realistic appraisal of the risks of assisting couples to employ SCM versus doing nothing.

Effect of Couples Counselling on Reported HIV Risk Behaviour among HIV Serodiscordant Couples by ART Use, HIV Status and Gender in Rural Uganda.

BACKGROUND: We examined several measures of self-reported HIV risk behaviour in mutually disclosed sero-discordant couples over time to see if a couples counselling intervention was associated with changes in these behaviors. METHODS: We analysed data from a prospective cohort study of HIV sero-discordant couples in Jinja, Uganda collected between June 2009 and December 2011. Participants received couples counselling, at 3-monthly intervals. We examined trends in reported condom-use, number of concurrent sexual partners, knowledge of HIV serostatus of concurrent partners and condom use of concurrent partners using Generalized Estimating Equation models, comparing responses at study enrollment with responses at six, 12 18 and 24 months of follow-up. RESULTS: A total of 586 couples were enrolled and the female member was HIV positive in 255 (44%) of them. The median age for female participants was 35 years and 42 years for men. Reported condom use at last sex with spouse increased over time (p<0.001) with the largest increases found among couples where the positive participant never received ART during the study(an increase from 68.8% at enrollment to 97.1% at 24 months). Male participants reported reductions in the number of concurrent sexual partners (p<0.001), increase in the knowledge of the HIV serostatus of these partners (p = 0.001) and a trend towards improved condom-use among non-primary partners (p = 0.070). Reported reduced risky behaviors did not wane over the study period. CONCLUSION: Couples counselling resulted in increased condom use among all participants and among men the intervention resulted in reductions in risk behaviour with concurrent sexual partners. Routine counselling for serodiscordant couples should be integrated in routine ART care programs.

Lack of Effectiveness of Antiretroviral Therapy in Preventing HIV Infection in Serodiscordant Couples in Uganda: An Observational Study.

BACKGROUND: We examined the real-world effectiveness of ART as an HIV prevention tool among HIV serodiscordant couples in a programmatic setting in a low-income country. METHODS: We enrolled individuals from HIV serodiscordant couples aged ≥18 years of age in Jinja, Uganda from June 2009 - June 2011. In one group of couples the HIV positive partner was receiving ART as they met clinical eligibility criteria (a CD4 cell count ≤250 cells/ µL or WHO Stage III/IV disease). In the second group the infected partner was not yet ART-eligible. We measured HIV incidence by testing the uninfected partner every three months. We conducted genetic linkage studies to determine the source of new infections in seroconverting participants. RESULTS: A total of 586 couples were enrolled of which 249 (42%) of the HIV positive participants were receiving ART at enrollment, and an additional 99 (17%) initiated ART during the study. The median duration of follow-up was 1.5 years. We found 9 new infections among partners of participants who had been receiving ART for at least three months and 8 new infections in partners of participants who had not received ART or received it for less than three months, for incidence rates of 2.09 per 100 person-years (PYRs) and 2.30 per 100 PYRs, respectively. The incidence rate ratio for ART-use was 0.91 (95% confidence interval 0.31-2.70; p=0.999). The hazard ratio for HIV seroconversion associated with ART-use by the positive partner was 1.07 (95% CI 0.41-2.80). A total of 5/7 (71%) of the transmissions on ART and 6/7 (86%) of those not on ART were genetically linked. CONCLUSION: Overall HIV incidence was low in comparison to previous studies of serodiscordant couples. However, ART-use was not associated with a reduced risk of HIV transmission in this study.

Correlates of Use of Timed Unprotected Intercourse to Reduce Horizontal Transmission Among Ugandan HIV Clients with Fertility Intentions.

We examined the correlates of use of safer conception methods (SCM) in a sample of 400 Ugandan HIV clients (75 % female; 61 % on antiretroviral therapy; 61 % with HIV-negative or unknown status partners) in heterosexual relationships with fertility intentions. SCM assessed included timed unprotected intercourse, manual self-insemination, sperm washing, and pre-exposure prophylaxis (PrEP). In the 6 months prior to baseline, 47 (12 %) reported using timed unprotected intercourse to reduce risk of HIV infection (or re-infection), none had used manual self-insemination or sperm washing, and two had used PrEP. In multiple regression analysis, correlates of use of timed unprotected intercourse included greater perceptions of partner's willingness to use SCM and providers' stigma of childbearing among people living with HIV, higher SCM knowledge, and desire for a child within the next 6 months. These findings highlight the need for policy and provider training regarding integration of couples' safer conception counselling into HIV care.

Decisions, decisions: the importance of condom use decision making among HIV sero-discordant couples in a prospective cohort study in Uganda.

OBJECTIVES: We examined sexual decision making type among couples in HIV sero-discordant partnerships in Uganda, and investigated how sexual decision making type changed over time and its effect on condom use. METHODS: Data were drawn from a longitudinal cohort of HIV sero-discordant couples, recruited through the AIDS Support Organisation in Jinja, Uganda. Sexual decision making was measured using the Sexual Relationship Power Scale, and couples' individual self-report answers were matched to assess agreement for decision making type and condom use. Generalised linear mixed effects modelling was used to assess statistically significant differences in time trend of sexual decision making type, and to investigate the independent association of decision making type on condom use status over time. RESULTS: Of the 533 couples included in this analysis, 345 (65%) reported using condoms at last sex at study enrolment. In the time trend analysis of decision making, the proportion of couples who decided together increased over time while the proportions of couples who reported that one partner decided or no one decided/did not use condoms, decreased over time (overall p<0.001). Compared with couples who decided together, those who disagreed (adjusted OR=0.42, 95% CI 0.28 to 0.64) and those where one partner decided (adjusted OR=0.20, 95% CI 0.12 to 0.34) had significantly lower odds of condom use at last sex, even after controlling for confounders. CONCLUSIONS: Couples who disagreed on decision making, or agreed that one partner decides alone, had significantly lower odds of reporting condom use compared with couples who decided together. HIV counselling interventions that encourage joint sexual decision making may improve condom use within this population.

Gendered HIV risk patterns among polygynous sero-discordant couples in Uganda.

Stable serodiscordant relationships and sexual concurrency are pathways that contribute to the HIV epidemic in sub-Saharan Africa. However whether polygyny imparts the same risks as informal concurrent relationships remains an open research question. Using data collected at enrollment from a cohort study of sero-discordant couples, this analysis investigates how polygynous relationships differ from those involving only a single female spouse and whether men involved in polygynous partnerships are more likely to report HIV-risk behaviour than those in single spouse partnerships. Of 444 enrolled couples, 111 (25%) were polygynous and 333 (75%) were single-spouse partnerships. We found that polygynous men were more likely to report controlling sexual decision-making and to report any unprotected sex with unknown sero-status partner. After controlling for potential confounders, polygynous men were still more likely to report unprotected sex with an unknown sero-status partner. In this sample of sero-discordant couples we found indication of excess HIV-risk behaviour among men involved in polygynous relationships.