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1.
Article in English | MEDLINE | ID: mdl-38738450

ABSTRACT

BACKGROUND: Respiratory syncytial virus (RSV) is a major cause of morbidity and mortality among U.S. infants. A child's calendar birth month determines their age at first exposure(s) to RSV. We estimated birth month-specific risk of medically attended (MA) RSV lower respiratory tract infection (LRTI) among infants during their first RSV season and first year of life. METHODS: We analyzed infants born in the USA between July 2016 and February 2020 using three insurance claims databases (two commercial, one Medicaid). We classified infants' first MA RSV LRTI episode by highest level of care incurred (outpatient, emergency department, or inpatient), employing specific and sensitive diagnostic coding algorithms to define index RSV diagnoses. In our main analysis we focused on infants' first RSV season. In our secondary analysis we compared the risk of MA RSV LRTI during infants' first RSV season to that of their first year of life. RESULTS: Infants born from May through September generally had the highest risk of first-season MA RSV LRTI-approximately 6%-10% under the specific RSV index diagnosis definition and 16%-26% under the sensitive. Infants born between October and December had the highest risk of RSV-related hospitalization during their first season. The proportion of MA RSV LRTI events classified as inpatient ranged from 9%-54% (specific) and 5%-33% (sensitive) across birth month and comorbidity group. Through the first year of life, the overall risk of MA RSV LRTI is comparable across birth months within each claims database (6%-11% under the specific definition, 17%-30% under the sensitive), with additional cases progressing to care at outpatient or ED settings. CONCLUSIONS: Our data support recent national recommendations for the use of nirsevimab in the USA. For infants born at the tail end of an RSV season who do not receive nirsevimab, a dose administered prior to the onset of their second RSV season could reduce the incidence of outpatient and ED-related events.

2.
Open Forum Infect Dis ; 11(3): ofae093, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38481429

ABSTRACT

Background: The cardiometabolic impact of HIV infection and treatment with antiretroviral therapy (ART) in pregnancy and the postpartum period remains unclear. Methods: We enrolled pregnant persons with (PHIV) and without HIV in Cape Town, South Africa, who were ≥18 years old at 24-28 weeks' gestation and followed them up to 32 months postpartum. We estimated associations between HIV status and cardiometabolic risk including body mass index (BMI), obesity (BMI ≥30 kg/m2), blood pressure (BP; elevated systolic BP ≥130 and/or diastolic ≥85 mmHg), lipid levels, and metabolic syndrome according to the Joint Interim Statement criteria using multivariable log binomial or linear regression models. Subgroup analyses compared PHIV on efavirenz (EFV)- vs dolutegravir (DTG)-based ART. Results: Among 400 participants (n = 200 without HIV, n = 200 PHIV), 52% had prepregnancy obesity and 9% had elevated BP. Postpartum, 57% were classified with obesity, 31% had elevated BP, and 29% had metabolic syndrome. In multivariable analyses, HIV was associated with a lower BMI prepregnancy but not postpartum; however, mean indices were in the obese range regardless of HIV status. Neither BMI nor obesity prepregnancy or postpartum differed by ART regimen. Among PHIV, participants on DTG had higher levels of elevated BP in pregnancy and postpartum, compared with PHIV on EFV. Conclusions: We observed high levels of obesity, elevated BP, and metabolic syndrome in the perinatal period but few differences by HIV status. Participants on DTG may be more likely to have elevated BP in pregnancy and postpartum. Monitoring of cardiometabolic health for pregnant persons on DTG is warranted.

3.
Front Nutr ; 11: 1280425, 2024.
Article in English | MEDLINE | ID: mdl-38385007

ABSTRACT

Background: While several methodologies are available to measure adiposity, few have been validated in sub-Saharan African (SSA) and none in postpartum African women living with HIV (WLHIV). We compared bioelectrical impendence analysis (BIA) and air displacement plethysmography (ADP) against dual x-ray absorptiometry (DXA) in South African women and examined differences by HIV and body mass index (BMI) status. Methods: Lin's concordance correlation coefficient (CCC) test was used to examine fat mass (FM), fat free mass (FFM), and total body fat percent (%BF) difference between BIA vs. DXA, and ADP vs. DXA in women living with HIV (n = 57) and without HIV (n = 25). The Bland Altman test was used to assess mean differences and the direction of bias. Results: The median age was 31 years (IQR, 26-35) and months postpartum were 11 (IQR, 7-16), 44% of the women had obesity. Lin's CCC for BIA and ADP vs. DXA were both 0.80 for %BF and 0.97 for FM, and 0.86 and 0.80 for FFM, respectively. Mean differences (DXA-BIA and ADP estimates) were 0.22 ± 4.54% (p = 0.54) and 3.35 ± 3.27% (p < 0.01) for %BF, -0.82 ± 3.56 kg (p = 0.06) and 1.43 ± 2.68 kg (p = 0.01) for FM, -1.38 ± 3.61 kg (p = 0.01) and - 3.34 ± 2.37 kg (p < 0.01) for FFM, respectively. BIA overestimated %BF in WLHIV and underestimated it in women with obesity. Conclusion: Body composition measurements using BIA and ADP correlated well with DXA, thereby providing alternative, safe tools for measuring postpartum FM and FFM in SSA women, including WLHIV.

4.
BMC Public Health ; 23(1): 2055, 2023 10 20.
Article in English | MEDLINE | ID: mdl-37858163

ABSTRACT

BACKGROUND: Despite the close relationship between pre-pregnancy body mass index (BMI), gestational weight gain (GWG) and postpartum weight (PPW), these factors are often studied separately. There are no data characterising longitudinal weight trajectories among pregnant and postpartum women in urban African populations. We examined maternal weight trajectories from pregnancy through to 12 months postpartum, factors associated with higher weight trajectory class membership and associations of weight trajectories with infant growth at 12 months. METHODS: Data from 989 women were examined for weight trajectories from first antenatal care visit in pregnancy to 12 months postpartum using latent-class growth models. Baseline factors associated with class membership were assessed using multinomial logistic regression. Of the enrolled women, 613 of their infants were assessed for growth at 12 months. Anthropometry measurements for mothers and infants were conducted by a trained study nurse. Associations between maternal weight trajectory class and infant weight-for-age (WAZ), length-for-age (LAZ), weight-for-length (WLZ) at 12 months of age were analysed using linear regression. RESULTS: Four distinct classes of maternal weight trajectories were identified. The classes included consistent low (29%), consistent medium (37%), medium-high (24%) and consistent high (10%) trajectories. Similar to trends observed with medium-high trajectory, baseline factors positively associated with consistent high class membership included age (OR 1.05, 95% CI 1.01-1.09), pre-pregnancy BMI (OR 2.24, 95% CI 1.97-2.56), stage 1 hypertension (OR 3.28, 95% CI 1.68-6.41), haemoglobin levels (OR 1.39, 95% CI 1.11-1.74) and parity (OR 1.39, 95% CI 1.15-1.67); living with HIV (OR 0.47, 95% CI 0.30-0.74) was inversely associated. In adjusted analyses, compared to consistent medium weight trajectory, consistent low weight trajectory (mean difference -0.41, 95% CI -0.71;-0.12) was associated with decreased, and consistent high weight trajectory (mean difference 1.21, 95% CI 0.59-1.83) with increased infant WAZ at 12 months of age. CONCLUSION: Identification of unique longitudinal weight trajectory groupings might inform comprehensive efforts targeted at improving healthy maternal weight and infant outcomes.


Subject(s)
Body-Weight Trajectory , Pregnancy , Infant , Female , Humans , South Africa/epidemiology , Prenatal Care , Postpartum Period , Body Mass Index , Mothers
5.
AIDS ; 37(13): 2069-2079, 2023 11 01.
Article in English | MEDLINE | ID: mdl-37534696

ABSTRACT

OBJECTIVE: To estimate associations of HIV status and antiretroviral (ART) regimen with gestational diabetes (GDM) and postpartum glucose metabolism. DESIGN: Prospective cohort study. METHODS: We enrolled pregnant persons with HIV (PWH) and without HIV in Cape Town, South Africa who were at least 18 years of age at 24-28 weeks' gestation and followed up to 26 months postpartum. Participants were tested for GDM in pregnancy and for diabetes postpartum using a 75 g 2 h oral glucose tolerance test (OGTT) and diagnosed via WHO criteria. We estimated associations of HIV status and ART regime [efavirenz (EFV) versus dolutegravir (DTG)] with GDM and postpartum impaired glucose metabolism using multivariable log binomial or linear regression models. RESULTS: Among 397 participants [median age 30 (interquartile range (IQR) 25-34; n  = 198 without HIV, n  = 199 PWH], the prevalence of GDM was 6% (9 PWH versus 3% without HIV). In multivariable analyses, PWH were at higher risk of GDM [risk ratio (RR) 3.9, 95% confidence interval (CI) 1.4-10.7] after adjustment for prepregnancy BMI and other confounders. GDM risk did not differ by ART regimen (unadjusted prevalence 8.1% DTG versus 5.6% EFV, adjusted RR 1.1, 95% CI 0.2-6.6). Few participants had diabetes, impaired glucose tolerance (IGT), or impaired fasting glucose postpartum ( n  = 13, 6%) with no differences by HIV or ART status. CONCLUSION: In a setting of universal GDM testing, PWH had an increased risk of impaired glucose metabolism during pregnancy but not postpartum. Among PWH, GDM risk was similar regardless of EFV or DTG use. Given concerns about DTG and weight gain, diabetes risk should continue to be monitored.


Subject(s)
Diabetes, Gestational , HIV Infections , Pregnancy , Female , Humans , Adult , Infant , Diabetes, Gestational/epidemiology , HIV Infections/complications , HIV Infections/drug therapy , South Africa/epidemiology , Prospective Studies , Postpartum Period , Benzoxazines/adverse effects , Glucose
6.
Womens Health Rep (New Rochelle) ; 4(1): 438-447, 2023.
Article in English | MEDLINE | ID: mdl-37638332

ABSTRACT

Background: Using a U.S. based, nationally representative sample, this study compares stillbirth and preterm birth outcomes between women living with HIV (WWH) who did and did not use antiretroviral therapy (ART) during pregnancy, additionally assessing ART duration and regimen type. Methods: Using 2001 to 2012 Medicaid Analytic eXtract (MAX) data from the 14 states with the highest prevalence of HIV. We estimated two, propensity score matched, multivariate logistic regression models for both outcomes of stillbirth and preterm birth: (1) any ART use and (2) the number of months on ART during pregnancy for ART users, adjusting for patient-level covariates. Results: Only 34.6% of pregnancies among WWH had a history of ART use and among those, the proportions of stillbirth and preterm birth were 0.9% and 7.9%, respectively. Any ART use was not significantly associated with either outcome of stillbirth (marginal effects [MEs]: 0.06%, 95% confidence interval [CI]: -0.17 to 0.28) or preterm birth (ME: -0.12%, 95% CI: -0.79 to 0.55). For ART users, duration of ART was not significantly associated with either outcome. Black race was a strong independent predictor in both models (stillbirth: 0.80% and 0.84%, preterm birth: 4.19% and 3.76%). Neither protease inhibitor (PI) nor boosted PI regimens were more strongly associated with stillbirth or preterm birth than nucleoside reverse transcriptase inhibitor-based regimens. Conclusion: ART use during pregnancy was low during this period. Our findings suggest that ART use and ART regimen are not associated, positively or negatively, with stillbirth or preterm birth for mothers with Medicaid. Additionally, our findings highlight a persisting need to address disparities in these outcomes for Black women.

7.
AIDS Behav ; 27(11): 3559-3570, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37084104

ABSTRACT

Perinatal depression (PND) is common and an important barrier to engagement in HIV care for women living with HIV (WLHIV). Accordingly, we adapted and enhanced The Friendship Bench, an evidence-based counseling intervention, for perinatal WLHIV. In a pilot randomized trial (NCT04143009), we evaluated the feasibility, acceptability, fidelity, and preliminary efficacy of the Enhanced Friendship Bench (EFB) intervention to improve PND and engagement in HIV care outcomes. Eighty pregnant WLHIV who screened positive for PND symptoms on the Self-Report Questionnaire (≥ 8) were enrolled, randomized 1:1 to EFB or usual care, and followed through 6 months postpartum. Overall, 100% of intervention participants were satisfied with the intervention and 93% found it beneficial to their overall health. Of 82 counseling sessions assessed for fidelity, 83% met or exceeded the fidelity threshold. At 6 months postpartum, intervention participants had improved depression remission (59% versus 36%, RD 23%, 95% CI 2%, 45%), retention in HIV care (82% versus 69%, RD 13%, -6%, 32%), and viral suppression (96% versus 90%, RD 7%, -7%, 20%) compared to usual care. Adverse events did not differ by arm. These results suggest that EFB intervention should be evaluated in a fully powered randomized trial to evaluate its efficacy to improve PND and engagement in HIV care outcomes for WLHIV.


Subject(s)
HIV Infections , Pregnancy , Humans , Female , Pilot Projects , HIV Infections/psychology , Mental Health , Malawi/epidemiology , Depression/epidemiology , Depression/therapy
8.
AIDS ; 37(1): 173-182, 2023 01 01.
Article in English | MEDLINE | ID: mdl-36476456

ABSTRACT

OBJECTIVE: To evaluate if in-utero HIV exposure is associated with adverse cardiometabolic health outcomes at 5-8 years of age. DESIGN: Prospective cohort study. METHODS: We enrolled a random sample of HIV-exposed but uninfected (HEU) and HIV-unexposed children from the Drakenstein Child Health study, a longitudinal birth cohort study in Cape Town, South Africa, in a cardiometabolic health pilot study. Outcomes were assessed by trained study staff and included: anthropometry, body composition and size, blood pressure, fasting plasma glucose, HbA1c, lipids, and insulin resistance using HOMA-IR. We used multivariable linear and log-binomial regression to estimate associations between HIV-exposure and cardiometabolic outcomes, adjusted for child age, sex, height, body size, and maternal factors as appropriate. RESULTS: We included 260 children (HEU n = 100, HIV-unexposed n = 160). HEU children had older mothers (median age 30 vs. 26 years), with minimal differences in gestational age and size at birth by HIV-exposure status. In multivariable analyses, HEU children had lower weight-for-age (mean difference -0.35, 95% confidence interval -0.66, -0.05), and height-for-age (mean difference -0.29, 95% confidence interval -0.56, -0.03; z-scores). There were no differences in adiposity, impaired glucose metabolism, or lipid levels by HIV-exposure status. Overall, 12% of children had blood pressure more than 90th percentile, with no differences by HIV-exposure status. CONCLUSION: Overall, there were few differences in cardiometabolic outcomes between HEU and HIV-unexposed children in this South African cohort. Although these findings are reassuring, monitoring of cardiometabolic health is important as HEU and HIV-unexposed children enter adolescence and cardiometabolic risk trajectories become established.


Subject(s)
Birth Cohort , HIV Infections , Infant, Newborn , Child , Humans , Adult , Cohort Studies , South Africa/epidemiology , Pilot Projects , Prospective Studies , HIV Infections/complications , HIV Infections/epidemiology
9.
BMC Psychiatry ; 22(1): 833, 2022 12 29.
Article in English | MEDLINE | ID: mdl-36581849

ABSTRACT

BACKGROUND: Perinatal depression (PND) is prevalent and negatively impacts HIV care among women living with HIV (WLHIV), yet PND remains under-identified in Malawian WLHIV. Accordingly, this formative study explored perceptions of the feasibility and acceptability of an integrated, task-shifted approach to PND screening and treatment in maternity clinics. METHODS: We completed consecutive PND screenings of HIV+ women attending pre- or post-natal appointments at 5 clinics in Lilongwe district, Malawi. We conducted in-depth interviews with the first 4-5 women presenting with PND per site (n = 24 total) from July to August 2018. PND classification was based on a score ≥ 10 on the Edinburgh Postnatal Depression Scale (EPDS). We conducted 10 additional in-depth interviews with HIV and mental health providers at the 5 clinics. RESULTS: Most participants endorsed the feasibility of integrated PND screening, as they believed that PND had potential for significant morbidity. Among providers, identified barriers to screening were negative staff attitudes toward additional work, inadequate staffing numbers and time constraints. Suggested solutions to barriers were health worker training, supervision, and a brief screening tool. Patient-centered counselling strategies were favored over medication by WLHIV as the acceptable treatment of choice, with providers supporting the role of medication to be restricted to severe depression. Providers identified nurses as the most suitable health workers to deliver task-shifted interventions and emphasized further training as a requirement to ensure successful task shifting. CONCLUSION: Improving PND in a simple, task-shifted intervention is essential for supporting mental health among women with PND and HIV. Our results suggest that an effective PND intervention for this population should include a brief, streamlined PND screening questionnaire and individualized counselling for those who have PND, with supplemental support groups and depression medication readily available. These study results support the development of a PND intervention to address the gap in treatment of PND and HIV among WLHIV in Malawi.


Subject(s)
Depression, Postpartum , Depressive Disorder , HIV Infections , Female , Humans , Pregnancy , Depression/complications , Depression/diagnosis , Depression/therapy , Malawi , Feasibility Studies , Depressive Disorder/therapy , HIV Infections/complications , HIV Infections/therapy , HIV Infections/psychology , Depression, Postpartum/epidemiology
10.
Am J Perinatol ; 2022 Sep 02.
Article in English | MEDLINE | ID: mdl-35709723

ABSTRACT

OBJECTIVE: This article aimed to develop a predictive model to identify persons with recent gestational diabetes mellitus (GDM) most likely to progress to impaired glucose tolerance postpartum. STUDY DESIGN: We conducted an observational study among persons with GDM in their most recent pregnancy, defined by Carpenter-Coustan criteria. Participants were followed up from delivery through 1-year postpartum. We used lasso regression with k-fold cross validation to develop a multivariable model to predict progression to impaired glucose tolerance, defined as HbA1c≥5.7%, at 1-year postpartum. Predictive ability was assessed by the area under the curve (AUC), sensitivity, specificity, and positive and negative predictive values (PPV and NPV). RESULTS: Of 203 participants, 71 (35%) had impaired glucose tolerance at 1-year postpartum. The final model had an AUC of 0.79 (95% confidence interval [CI]: 0.72, 0.85) and included eight indicators of weight, body mass index, family history of type 2 diabetes, GDM in a prior pregnancy, GDM diagnosis<24 weeks' gestation, and fasting and 2-hour plasma glucose at 2 days postpartum. A cutoff point of ≥ 0.25 predicted probability had sensitivity of 80% (95% CI: 69, 89), specificity of 58% (95% CI: 49, 67), PPV of 51% (95% CI: 41, 61), and NPV of 85% (95% CI: 76, 91) to identify women with impaired glucose tolerance at 1-year postpartum. CONCLUSION: Our predictive model had reasonable ability to predict impaired glucose tolerance around delivery for persons with recent GDM. KEY POINTS: · We developed a predictive model to identify persons with GDM most likely to develop IGT postpartum.. · The final model had an AUC of 0.79 (95% CI: 0.72, 0.85) and included eight clinical indicators.. · If validated, our model could help prioritize diabetes prevention efforts among persons with GDM..

11.
AIDS Behav ; 26(7): 2387-2396, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35061116

ABSTRACT

Long-term patient engagement and retention in HIV care is an ongoing challenge in South Africa's strained health system. However, some patients thought to be "lost to follow-up" (LTFU) may have "transferred" clinics to receive care elsewhere. Through semi-structured interviews, we explored the relationship between clinic transfer and long-term patient engagement among 19 treatment-experienced people living with HIV (PLWH) who self-identified as having engaged in a clinic transfer at least once since starting antiretroviral therapy (ART) in Gugulethu, Cape Town. Our findings suggest that patient engagement is often fluid, as PLWH cycle in and out of care multiple times during their lifetime. The linear nature of the HIV care cascade model poorly describes the lived realities of PLWH on established treatment. Further research is needed to explore strategies for reducing unplanned clinic transfers and offer more supportive care to new and returning patients.


Subject(s)
HIV Infections , Ambulatory Care Facilities , HIV Infections/drug therapy , HIV Infections/epidemiology , Humans , Longitudinal Studies , Qualitative Research , South Africa/epidemiology
12.
Int J Gynaecol Obstet ; 156(3): 502-507, 2022 Mar.
Article in English | MEDLINE | ID: mdl-33811637

ABSTRACT

OBJECTIVE: To examine the ability of a previously published risk score to predict incontinence at discharge in women with vesicovaginal fistulas (VVF) and to examine how the score correlates with an independent assessment of surgical skill. METHODS: This is a retrospective cohort study including cases from January to June 2018. We evaluated operative records for factors associated with incontinence at hospital discharge, as well as relationships between a risk score cut-point of 20 or more and surgical skill level. All women with VVF undergoing vaginal repair were included. RESULTS: A total of 176 individuals underwent repair; 23 were performed by beginner, 85 by intermediate, 47 by advanced, and 21 by expert surgeons. Factors found significantly associated with incontinence at hospital discharge included Goh classification, fistula size, circumferential fistula, and vaginal scarring. A score of 20 or more predicted residual incontinence with a negative predictive value of 92% (odds ratio 7.75, 95% confidence interval 2.95-22.34). Applying the score cut-point of 20 or more, we found an increased proportion of "high-risk" cases allocated to surgeons with an increasing level of expertise. CONCLUSION: The correlation we observed between a risk score cut-point of 20 or more, continence status, and an independent assessment of surgical skill is promising. Although the risk score is not meant to replace clinical judgment, it may provide a surgical trainee with an objective method of determining whether to operate or refer for optimal outcomes.


Subject(s)
Urinary Incontinence , Vesicovaginal Fistula , Female , Gynecologic Surgical Procedures , Humans , Pregnancy , Retrospective Studies , Risk Factors , Urinary Incontinence/diagnosis , Urinary Incontinence/epidemiology , Vesicovaginal Fistula/diagnosis , Vesicovaginal Fistula/epidemiology , Vesicovaginal Fistula/surgery
13.
Paediatr Perinat Epidemiol ; 36(4): 536-547, 2022 07.
Article in English | MEDLINE | ID: mdl-34859468

ABSTRACT

BACKGROUND: Maternal HIV and antiretroviral therapy (ART) exposure in utero may influence infant weight, but the contribution of maternal y body mass index (BMI) to early life overweight and obesity is not clear. OBJECTIVE: To estimate associations between maternal BMI at entry to antenatal care (ANC) and infant weight through approximately 1 year of age and to evaluate whether associations were modified by maternal HIV status, maternal HIV and viral load, breastfeeding intensity through 6 months or timing of entry into ANC. METHODS: We followed HIV-uninfected and -infected pregnant women initiating efavirenz-based ART from first antenatal visit through 12 months postpartum. Infant weight was assessed via World Health Organization BMI and weight-for-length z-scores (WLZ) at 6 weeks, 3, 6, 9 and 12 months. We used multivariable linear mixed-effects models to estimate associations between maternal BMI and infant z-scores over time. RESULTS: In 861 HIV-uninfected infants (454 HIV-exposed; 407 HIV-unexposed), nearly 20% of infants were overweight or obese by 12 months of age, regardless of HIV exposure status. In multivariable analyses, increasing maternal BMI category was positively associated with higher infant BMIZ and WLZ scores between 6 weeks and 12 months of age and did not differ by HIV exposure status. However, HIV-exposed infants had slightly lower BMIZ and WLZ trajectories through 12 months of age, compared with HIV-unexposed infants across all maternal BMI categories. Differences in BMIZ and WLZ scores by HIV exposure were not explained by timing of entry into ANC or maternal viral load pre-ART initiation, but z-scores were slightly higher for HIV-exposed infants who were predominantly or exclusively versus partially breastfed. CONCLUSIONS: These findings suggest maternal BMI influences early infant weight gain, regardless of infant HIV exposure status. Intervention to reduce maternal BMI may help to address growing concerns about obesity among HIV-uninfected children.


Subject(s)
Body-Weight Trajectory , HIV Infections , Pregnancy Complications, Infectious , Body Mass Index , Breast Feeding , Child , Female , HIV Infections/complications , HIV Infections/drug therapy , HIV Infections/epidemiology , Humans , Infant , Obesity/complications , Overweight/complications , Pregnancy , Pregnancy Complications, Infectious/epidemiology
14.
BMJ Open ; 11(12): e055712, 2021 12 02.
Article in English | MEDLINE | ID: mdl-34857581

ABSTRACT

OBJECTIVES: For persons living with HIV (PLWH) in long-term care, clinic transfers are common and influence sustained engagement in HIV care, as they are associated with significant time out-of-care, low CD4 count, and unsuppressed viral load on re-entry. Despite the geospatial nature of clinic transfers, there exist limited data on the geospatial trends of clinic transfers to guide intervention development. In this study, we investigate the geospatial characteristics and trends of clinic transfers among PLWH on antiretroviral therapy (ART) in the Western Cape Province of South Africa. DESIGN: Retrospective spatial analysis. SETTING: PLWH who initiated ART treatment between 2012 and 2016 in South Africa's Western Cape Province were followed from ART initiation to their last visit prior to 2017. Deidentified electronic medical records from all public clinical, pharmacy, and laboratory visits in the Western Cape were linked across space and time using a unique patient identifier number. PARTICIPANTS: 4176 ART initiators in South Africa (68% women). METHODS: We defined a clinic transfer as any switch between health facilities that occurred on different days and measured the distance between facilities using geodesic distance. We constructed network flow maps to evaluate geospatial trends in clinic transfers over time, both for individuals' first transfer and overall. RESULTS: Two-thirds of ART initiators transferred health facilities at least once during follow-up. Median distance between all clinic transfer origins and destinations among participants was 8.6 km. Participant transfers were heavily clustered around Cape Town. There was a positive association between time on ART and clinic transfer distance, both among participants' first transfers and overall. CONCLUSION: This study is among the first to examine geospatial trends in clinic transfers over time among PLWH. Our results make clear that clinic transfers are common and can cluster in urban areas, necessitating better integrated health information systems and HIV care.


Subject(s)
Anti-HIV Agents , HIV Infections , Ambulatory Care Facilities , Anti-HIV Agents/therapeutic use , Female , HIV Infections/drug therapy , HIV Infections/epidemiology , Humans , Male , Retrospective Studies , South Africa/epidemiology , Spatial Analysis
15.
Am J Epidemiol ; 190(10): 2075-2084, 2021 10 01.
Article in English | MEDLINE | ID: mdl-33972995

ABSTRACT

In an analysis of randomized trials, use of efavirenz for treatment of human immunodeficiency virus (HIV) infection was associated with increased suicidal thoughts/behaviors. However, analyses of observational data have found no evidence of increased risk. To assess whether population differences might explain this divergence, we transported the effect of efavirenz use from these trials to a specific target population. Using inverse odds weights and multiple imputation, we transported the effect of efavirenz on suicidal thoughts/behaviors in these randomized trials (participants were enrolled in 2001-2007) to a trials-eligible cohort of US adults initiating antiretroviral therapy while receiving HIV clinical care at medical centers between 1999 and 2015. Overall, 8,291 cohort participants and 3,949 trial participants were eligible. Prescription of antidepressants (19% vs. 13%) and injection drug history (16% vs. 10%) were more frequent in the cohort than in the trial participants. Compared with the effect in trials, the estimated hazard ratio for efavirenz on suicidal thoughts/behaviors was attenuated in our target population (trials: hazard ratio (HR) = 2.3 (95% confidence interval (CI): 1.2, 4.4); transported: HR = 1.8 (95% CI: 0.9, 4.4)), whereas the incidence rate difference was similar (trials: HR = 5.1 (95% CI: 1.6, 8.7); transported: HR = 5.4 (95% CI: -0.4, 11.4)). In our target population, there was greater than 20% attenuation of the hazard ratio estimate as compared with the trials-only estimate. Transporting results from trials to a target population is informative for addressing external validity.


Subject(s)
Alkynes/adverse effects , Anti-HIV Agents/adverse effects , Benzoxazines/adverse effects , Cyclopropanes/adverse effects , Depression/epidemiology , Suicidal Ideation , Translational Research, Biomedical/methods , Adult , Antidepressive Agents/therapeutic use , Depression/chemically induced , Depression/drug therapy , Drug Prescriptions/statistics & numerical data , Female , HIV , HIV Infections/drug therapy , Humans , Incidence , Male , Observational Studies as Topic , Proportional Hazards Models , Randomized Controlled Trials as Topic , United States/epidemiology
16.
AIDS Behav ; 25(10): 3337-3346, 2021 Oct.
Article in English | MEDLINE | ID: mdl-33609203

ABSTRACT

For people living with HIV (PLWH), patient transfers may affect engagement in care. We followed a cohort of PLWH in Cape Town, South Africa who tested positive for HIV in 2012-2013 from ART initiation in 2012-2016 through December 2016. Patient transfers were defined as moving from one healthcare facility to another on a different day, considering all healthcare visits and recorded HIV-visits only. We estimated incidence rates (IR) for transfers by time since ART initiation, overall and by gender, and associations between transfers and gaps of > 180 days in clinical care. Overall, 4,176 PLWH were followed for a median of 32 months, and 8% (HIV visits)-17% (all healthcare visits) of visits were patient transfers. Including all healthcare visits, transfers were highest through 3 months on ART (IR 20.2 transfers per 100 visits, 95% CI 19.2-21.2), but increased through 36 months on ART when only HIV visits were included (IR 9.7, 95% CI 8.8-10.8). Overall, women were more likely to transfer than men, and transfers were associated with gaps in care (IR ratio [IRR] 3.06 95% CI 2.83-3.32; HIV visits only). In this cohort, patient transfers were frequent, more common among women, and associated with gaps in care.


Subject(s)
HIV Infections , Patient Transfer , Adult , Cohort Studies , Female , HIV Infections/drug therapy , HIV Infections/epidemiology , Health Facilities , Humans , Male , South Africa/epidemiology
17.
Am J Epidemiol ; 190(1): 10-16, 2021 01 04.
Article in English | MEDLINE | ID: mdl-32696057

ABSTRACT

As of July 2020, approximately 6 months into the pandemic of novel coronavirus disease 2019 (COVID-19), whether people living with human immunodeficiency virus (HIV; PLWH) are disproportionately affected remains an unanswered question. Thus far, risk of COVID-19 in people with and without HIV appears similar, but data are sometimes contradictory. Some uncertainty is due to the recency of the emergence of COVID-19 and sparsity of data; some is due to imprecision about what it means for HIV to be a "risk factor" for COVID-19. Forthcoming studies on the risk of COVID-19 to PLWH should differentiate between 1) the unadjusted, excess burden of disease among PLWH to inform surveillance efforts and 2) any excess risk of COVID-19 among PLWH due to biological effects of HIV, independent of comorbidities that confound rather than mediate this effect. PLWH bear a disproportionate burden of alcohol, other drug use, and mental health disorders, as well as other structural vulnerabilities, which might increase their risk of COVID-19. In addition to any direct effects of COVID-19 on the health of PLWH, we need to understand how physical distancing restrictions affect secondary health outcomes and the need for, accessibility of, and impact of alternative modalities of providing ongoing medical, mental health, and substance use treatment that comply with physical distancing restrictions (e.g., telemedicine).


Subject(s)
COVID-19/epidemiology , HIV Infections/epidemiology , HIV , Pandemics , SARS-CoV-2 , Comorbidity , Humans
18.
Clin Obstet Gynecol ; 64(1): 234-243, 2021 03 01.
Article in English | MEDLINE | ID: mdl-33306495

ABSTRACT

Gestational diabetes mellitus (GDM) complicates 6% to 8% of pregnancies and up to 50% of women with GDM progress to type 2 diabetes mellitus (DM) within 5 years postpartum. Clinicians have little guidance on which women are most at risk for DM progression or when evidence-based prevention strategies should be implemented in a woman's lifecycle. To help address this gap, the authors review identifiable determinants of progression from GDM to DM across the perinatal period, considering prepregnancy, pregnancy, and postpartum periods. The authors categorize evidence by pathways of risk including genetic, metabolic, and behavioral factors that influence progression to DM among women with GDM.


Subject(s)
Diabetes Mellitus, Type 2 , Diabetes, Gestational , Diabetes Mellitus, Type 2/epidemiology , Diabetes, Gestational/epidemiology , Female , Humans , Postpartum Period , Pregnancy , Risk Factors
19.
Pregnancy Hypertens ; 23: 79-86, 2021 Mar.
Article in English | MEDLINE | ID: mdl-33285444

ABSTRACT

OBJECTIVE: To examine associations between high blood pressure (BP) when entering antenatal care (ANC) and birth outcomes in a cohort of pregnant HIV- and women living with HIV (WLHIV) initiating antiretroviral treatment (ART). STUDY DESIGN: Prospective cohort study. MAIN OUTCOME MEASURES: Cesarean delivery, preterm birth (<37 weeks' gestation), low birthweight (LBW, <2500 g), small-for-gestational age (SGA, <10th percentile), and large-for-gestational age (LGA, >10th percentile for GA). RESULTS: Of 1116 women (median GA 20 weeks; WLHIV 53%), 48% (53% WLHIV; 43% HIV-) entered ANC with high BP, defined as elevated (120-129 or < 80 mmHg), stage 1 (>130-139 or 80-89) or stage 2 hypertension (≥140 / or ≥ 90). WLHIV were more likely to have high BP (RR 1.32; 95%CI 1.12-1.57), controlling for pre-pregnancy body mass index and additional confounders. In multivariable analysis, there was no evidence that high BP increased the risk of cesarean delivery (RR 1.10, 95% CI 0.92-1.30), preterm birth (RR 1.15, 95% CI 0.81-1.62), LBW (RR 1.16, 95% CI 0.84-1.60) or SGA (RR 1.02, 0.72-1.44), overall or when stratified by HIV-status. High BP was associated with an increased risk of LGA (RR 1.43; 95% CI 1.00-2.03). CONCLUSION: In this setting, half of women had high BP at entry into ANC, with WLHIV at increased risk of high BP. There was no strong evidence that high BP increased the risk of adverse birth outcomes overall, or by HIV-status, with the exception of LGA. WLHIV may be at high risk of high BP during pregnancy and should be monitored closely.


Subject(s)
Birth Weight , Cesarean Section/statistics & numerical data , HIV Infections/epidemiology , Hypertension, Pregnancy-Induced/epidemiology , Premature Birth/epidemiology , Adult , Anti-Retroviral Agents/therapeutic use , Case-Control Studies , Female , HIV Infections/drug therapy , Humans , Hypertension, Pregnancy-Induced/diagnosis , Infant, Newborn , Pregnancy , Prenatal Care/statistics & numerical data , Prospective Studies , South Africa/epidemiology
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