Publications

HIV-related stigma represents a potent risk factor for a range of poor health outcomes, including mental health symptoms, treatment non-adherence, and substance use. Understanding the role of HIV-related stigma in promoting healthcare outcomes is critical for vulnerable populations, such as pregnant women living with HIV, in contexts with continued high rates of HIV and associated stigma, such as sub-Saharan Africa. The current study examined a range of risk and protective factors for HIV-related stigma with 742 pregnant women (M age = 29.6 years) living with depression and HIV accessing prevention of mother-to-child transmission of HIV (PMTCT) services in Dar es Salaam, Tanzania. Risk factors included depressive symptoms, ART non-adherence, intimate partner violence, food insecurity, and alcohol problems. Protective factors included disclosure of HIV status, social support, an appreciative relationship with their partner, hope, and self-efficacy. Findings highlight key psychosocial and behavioral determinants of HIV-related stigma for pregnant women living with HIV in Tanzania, and can inform perinatal care programming and interventions to optimize mental health and adherence outcomes.

Intimate partner violence (IPV) exacts a heavy burden on women, resulting in poor health outcomes. This study had the following aims: (1) estimate the prevalence of IPV post-disclosure of HIV status among pregnant women living with HIV and depression; and (2) evaluate risk and protective factors for IPV post-disclosure. Participants were women accessing PMTCT services at 16 health facilities in Dar es Salaam and screened at the threshold of 9 on the PHQ-9. Generalized linear equations with a log link and standard errors clustered at the facility level were used to calculate associations between predictors and IPV post-disclosure. Among 659 women who were in an intimate relationship, 10.2% had experienced physical violence and 11.6% had reported sexual violence from their partner in the past six months; 327 had disclosed their HIV status to their partners. After disclosure to their partners 279 women (85.3%) experienced IPV. HIV-related stigma was associated with increased risk of IPV following disclosure and appreciative relationships with partners and higher hope were associated with reduced risk of IPV. There is a need to identify and advance approaches to HIV disclosure that prevent IPV. Interventions should be developed based on known risk and protective factors for IPV following HIV disclosure in Tanzania and similar settings.

OBJECTIVE: To evaluate the association between US state policies that establish age 18 or 21 years as the minimum purchaser age for the sale of handguns and adolescent suicide rate.

DESIGN: Regression discontinuity and difference-in-differences analyses.

SETTING: 46 US states without policy changes between 2001 and 2017; Missouri and South Carolina, which lowered the age for handgun sales in 2007 and 2008, respectively; and West Virginia and Wyoming, which increased the age for handgun sales in 2010.

PARTICIPANTS: Adolescents aged 13 to 20 years(554 461 961 from 2001 to 2017) in the regression discontinuity analysis, and adolescents aged 18 to 20 years (168 934 041 from 2002 to 2014) in the main difference-in-differences analysis.

MAIN OUTCOME MEASURE: Suicide rate per 100 000 adolescents.

RESULTS: In the regression discontinuity analysis, state policies that limited the sale of handguns to those aged 18 or older (relative to 21 or older) were associated with an increase in suicide rate among adolescents aged 18 to 20 years equivalent to 344 additional suicides in each state where they were in place between 2001 and 2017. In the difference-in-differences analysis, state policies that limited the sale of handguns to those aged 21 or older were associated with 1.91 fewer suicides per 100 000 adolescents aged 18 to 20 years (95% confidence interval -3.13 to -0.70, permutation adjusted P=0.025). In the difference-in-differences analysis, there were 1.83 fewer firearm related suicides per 100 000 adolescents (-2.66 to -1.00, permutation adjusted P=0.002), with no association between age 21 handgun sales policies and non-firearm related suicides. Separate event study estimates indicated increases in suicide rates in states that lowered the age of handgun sales, with no association in states that increased the age of handgun sales.

CONCLUSIONS: A clear discontinuity was shown in the suicide rate by age at age 18 in states that limited the sale of handguns to individuals aged 18 or older. State policies to limit the sale of handguns to individuals aged 21 or older were associated with a reduction in suicide rates among adolescents. Increases in suicide rates were observed after states lowered the age of handgun sales, but no effect was found in states that increased the age of handgun sales.

OBJECTIVE: To test the success of a maternal healthcare quality improvement intervention in actually improving quality.

DESIGN: Cluster-randomized controlled study with implementation evaluation; we randomized 12 primary care facilities to receive a quality improvement intervention, while 12 facilities served as controls.

SETTING: Four districts in rural Tanzania.

PARTICIPANTS: Health facilities (24), providers (70 at baseline; 119 at endline) and patients (784 at baseline; 886 at endline).

INTERVENTIONS: In-service training, mentorship and supportive supervision and infrastructure support.

MAIN OUTCOME MEASURES: We measured fidelity with indictors of quality and compared quality between intervention and control facilities using difference-in-differences analysis.

RESULTS: Quality of care was low at baseline: the average provider knowledge test score was 46.1% (range: 0-75%) and only 47.9% of women were very satisfied with delivery care. The intervention was associated with an increase in newborn counseling (β: 0.74, 95% CI: 0.13, 1.35) but no evidence of change across 17 additional indicators of quality. On average, facilities reached 39% implementation. Comparing facilities with the highest implementation of the intervention to control facilities again showed improvement on only one of the 18 quality indicators.

CONCLUSIONS: A multi-faceted quality improvement intervention resulted in no meaningful improvement in quality. Evidence suggests this is due to both failure to sustain a high-level of implementation and failure in theory: quality improvement interventions targeted at the clinic-level in primary care clinics with weak starting quality, including poor infrastructure and low provider competence, may not be effective.

BACKGROUND: Despite the need for mental health surveillance in humanitarian emergencies, there is a lack of validated instruments. This study evaluated a sequential screening process for major depressive disorder (MDD) using the two- and eight-item Patient Health Questionnaires (PHQ-2 and PHQ-8, respectively).

METHODS: This study analyzed data collected during a cross-sectional survey in a Syrian refugee camp in Greece (n = 135). The response rate for each instrument was assessed, and response burden was calculated as the number of items completed. The sequential screening process was simulated to replicate the MDD classifications captured if the PHQ-2 was used to narrow the population receiving the full PHQ-8 assessment. All respondents were screened using the PHQ-2. Only respondents scoring ≥ 2 are considered at risk for symptoms of MDD and complete the remaining six items. The positive and negative percent agreement of this sequential screening process were evaluated.

RESULTS: The PHQ-2, PHQ-2/8 sequential screening process, and PHQ-8 were completed by 91%, 87%, and 84% of respondents, respectively. The sequential screening process had a positive percent agreement of 89% and a negative percent agreement of 100%, and eliminated the need to complete the full PHQ-8 scale for 34 (25%) respondents.

CONCLUSIONS: The benefits of the sequential screening approach for the classification of MDD presented here are twofold: preserving classification accuracy relative to the PHQ-2 alone while reducing the response burden of the PHQ-8. This sequential screening approach is a pragmatic strategy for streamlining MDD surveillance in humanitarian emergencies.

BACKGROUND: Perinatal women accessing prevention of mother-to-child transmission of HIV (PMTCT) services are at an increased risk of depression; however, in Tanzania there is limited access to services provided by mental health professionals. This paper presents a protocol and baseline characteristics for a study evaluating a psychosocial support group intervention facilitated by lay community-based health workers (CBHWs) for perinatal women living with HIV and depression in Dar es Salaam.

METHODS: A cluster randomized controlled trial (RCT) is conducted comparing: 1) a psychosocial support group intervention; and 2) improved standard of mental health care. The study is implemented in reproductive and child health (RCH) centers providing PMTCT services. Baseline characteristics are presented by comparing sociodemographic characteristics and primary as well as secondary outcomes for the trial for intervention and control groups. The trial is registered under clinicaltrials.gov (NCT02039973).

RESULTS: Among 742 women enrolled, baseline characteristics were comparable for intervention and control groups, although more women in the control group had completed secondary school (25.2% versus 18.2%). Overall, findings suggest that the population is highly vulnerable with over 45% demonstrating food insecurity and 17% reporting intimate partner violence in the past 6 months.

CONCLUSIONS: Baseline characteristics for the cluster RCT were comparable for intervention and control groups. The trial will examine the effectiveness of a psychosocial support group intervention for the treatment of depression among women living with HIV accessing PMTCT services. A reduction in the burden of depression in this vulnerable population has implications in the short-term for improved HIV-related outcomes and for potential long-term effects on child growth and development.

TRIAL REGISTRATION: The trial is registered under clinicaltrials.gov (NCT02039973). Retrospectively registered on January 20, 2014.

BACKGROUND: Access to high-quality, person-centred care during pregnancy and childbirth is a global priority. Positive experience of care is key in particular, because it is both a fundamental right and can influence health outcomes and future healthcare utilisation. Despite its importance for accountability and action, systematic guidance on measuring experience of care is limited.

METHODS: We conducted a scoping review of published literature to identify measures/instruments for experience of facility-based pregnancy and childbirth (abortion, antenatal, intrapartum, postnatal and newborn) care. We systematically searched five bibliographic databases from 1 January 2007 through 1 February 2019. Using a predefined evidence template, we extracted data on study design, data collection method, study population and care type as reported in primary quantitative articles. We report results narratively.

RESULTS: We retrieved 16 528 unique citations, including 171 eligible articles representing, 157 unique instruments and 144 unique parent instruments across 56 countries. Half of the articles (90/171) did not use a validated instrument. While 82% (n=141) of articles reported on labour and childbirth care, only one reported on early pregnancy/abortion care. The most commonly reported sub-domains of user experience were communication (84%, 132/157) and respect and dignity (71%, 111/157). The primary purpose of most papers was measurement (70%, 119/171), largely through cross-sectional surveys.

CONCLUSION: There are alarming gaps in measurement of user experience for abortion, antenatal, postnatal and newborn care, including lack of validated instruments to measure the effects of interventions and policies on user experience.

PROTOCOL REGISTRATION DETAILS: This review was registered and published on PROSPERO (CRD42017070867). PROSPERO is an international database of prospectively registered systematic reviews in health and social care.

INTRODUCTION: Determining whether the prevalence of gun ownership is associated with youth suicide is critical to inform policy to address this problem. The objective of this study is to investigate the relationship between the prevalence of household gun ownership in a state and that state's rate of youth suicide.

METHODS: This study, conducted in 2018, involved a secondary analysis of state-level data for the U.S. using multivariable linear regression. The relationship between the prevalence of household gun ownership and youth (aged 10-19 years) suicide rates was examined in a time-lagged analysis of state-level household gun ownership in 2004 and youth suicide rates in the subsequent decade (2005-2015), while controlling for the prevalence of youth suicide attempts and other risk factors.

RESULTS: Household gun ownership was positively associated with the overall youth suicide rate. For each 10 percentage-point increase in household gun ownership, the youth suicide rate increased by 26.9% (95% CI=14.0%, 39.8%).

CONCLUSIONS: Because states with high levels of household gun ownership are likely to experience higher youth suicide rates, these states should be especially concerned about implementing programs and policies to ameliorate this risk.

BACKGROUND: Home delivery and late and infrequent attendance at antenatal care (ANC) are responsible for substantial avoidable maternal and pediatric morbidity and mortality in sub-Saharan Africa. This cluster-randomized trial aimed to determine the impact of a community health worker (CHW) intervention on the proportion of women who (i) visit ANC fewer than 4 times during their pregnancy and (ii) deliver at home.

METHODS AND FINDINGS: As part of a 2-by-2 factorial design, we conducted a cluster-randomized trial of a home-based CHW intervention in 2 of 3 districts of Dar es Salaam from 18 June 2012 to 15 January 2014. Thirty-six wards (geographical areas) in the 2 districts were randomized to the CHW intervention, and 24 wards to the standard of care. In the standard-of-care arm, CHWs visited women enrolled in prevention of mother-to-child HIV transmission (PMTCT) care and provided information and counseling. The intervention arm included additional CHW supervision and the following additional CHW tasks, which were targeted at all pregnant women regardless of HIV status: (i) conducting home visits to identify pregnant women and refer them to ANC, (ii) counseling pregnant women on maternal health, and (iii) providing home visits to women who missed an ANC or PMTCT appointment. The primary endpoints of this trial were the proportion of pregnant women (i) not making at least 4 ANC visits and (ii) delivering at home. The outcomes were assessed through a population-based household survey at the end of the trial period. We did not collect data on adverse events. A random sample of 2,329 pregnant women and new mothers living in the study area were interviewed during home visits. At the time of the survey, the mean age of participants was 27.3 years, and 34.5% (804/2,329) were pregnant. The proportion of women who reported having attended fewer than 4 ANC visits did not differ significantly between the intervention and standard-of-care arms (59.1% versus 60.7%, respectively; risk ratio [RR]: 0.97; 95% CI: 0.82-1.15; p = 0.754). Similarly, the proportion reporting that they had attended ANC in the first trimester did not differ significantly between study arms. However, women in intervention wards were significantly less likely to report having delivered at home (3.9% versus 7.3%; RR: 0.54; 95% CI: 0.30-0.95; p = 0.034). Mixed-methods analyses of additional data collected as part of this trial suggest that an important reason for the lack of effect on ANC outcomes was the perceived high economic burden and inconvenience of attending ANC. The main limitations of this trial were that (i) the outcomes were ascertained through self-report, (ii) the study was stopped 4 months early due to a change in the standard of care in the other trial that was part of the 2-by-2 factorial design, and (iii) the sample size of the household survey was not prespecified.

CONCLUSIONS: A home-based CHW intervention in urban Tanzania significantly reduced the proportion of women who reported having delivered at home, in an area that already has very high uptake of facility-based delivery. The intervention did not affect self-reported ANC attendance. Policy makers should consider piloting, evaluating, and scaling interventions to lessen the economic burden and inconvenience of ANC.

TRIAL REGISTRATION: ClinicalTrials.gov NCT01932138.

Knowing how patients are treated in care is foundational for creating patient-centred, high-quality health systems and identifying areas where policies and practices need to adapt to improve patient care. However, little is known about the prevalence of disrespectful treatment of patients in sub-Saharan Africa outside of maternity care. We used data from a household survey of 2002 women living in rural Tanzania to describe the extent of disrespectful care during outpatient visits, who receive disrespectful care, and determine the association with patient satisfaction, rating of quality and recommendation of the facility to others. We asked about women's most recent outpatient visit to the local clinic, including if they were made to feel disrespected, if a provider shouted at or scolded them, and if providers made negative or disparaging comments about them. Women who answered yes to any of these questions were considered to have experienced disrespectful care. We report risk ratios with standard errors clustered at the facility level. The most common reasons for seeking care were fever or malaria (33.9%), vaccination (33.6%) and non-emergent check-up (13.4%). Disrespectful care was reported by 14.3% of women and was more likely if the visit was for sickness compared to a routine check-up [risk ratio (RR): 1.6, 95% confidence interval (CI): 1.1-2.2]. Women who did not report disrespectful care were 2.1 times as likely to recommend the clinic (95% CI: 1.6-2.7). While there is currently a lot of attention on disrespectful maternity care, our results suggest that this is a problem that goes beyond this single health issue and should be addressed by more horizontal health system interventions and policies.