Effectiveness of monovalent rotavirus vaccine against hospitalizations due to all rotavirus and equine-like G3P[8] genotypes in Haiti 2014-2019

BACKGROUND

Rotavirus vaccines are effective in preventing severe rotavirus. Haiti introduced 2-dose monovalent (G1P[8]) rotavirus vaccine recommended for infants at 6 and 10 weeks of age in 2014. We calculated the effectiveness of rotavirus vaccine against hospitalization for acute gastroenteritis in Haiti.

METHODS

We enrolled children 6-59 months old admitted May 2014-September 2019 for acute watery diarrhea at any sentinel surveillance hospital. Stool was tested for rotavirus using enzyme immunoassay (EIA) and genotyped with multiplex one-step RT-PCR assay and Sanger sequencing for stratification by genotype. We used a case-negative design where cases were children positive for rotavirus and controls were negative for rotavirus. Only children eligible for vaccination were included and a child was considered vaccinated if vaccine was given ≥ 14 days before enrollment. We used unconditional logistic regression to calculate odds ratios and calculated 2-dose and 1-dose vaccine effectiveness (VE) as (1 - odds ratio) * 100.

RESULTS

We included 129 (19%) positive cases and 543 (81%) negative controls. Among cases, 77 (60%) were positive for equine-like G3P[8]. Two doses of rotavirus vaccine were 66% (95% CI: 44, 80) effective against hospitalizations due to any strain of rotavirus and 64% (95% CI: 33, 81) effective against hospitalizations due to the equine-like G3P[8] genotype.

CONCLUSIONS

These findings are comparable to other countries in the Americas region. To the best of our knowledge, this is the first VE estimate both against the equine-like G3P[8] genotype and from a Caribbean country. Overall, these results support rotavirus vaccine use and demonstrate the importance of complete vaccination.

Disasters, Gender, and HIV Infection: The Impact of the 2010 Haiti Earthquake

Although disasters threaten all people who experience them, they do not affect all members of society in the same way. Its effects are not solely restricted to the economic sphere; they also affect the physical and mental health of those who suffer from them, having a particular impact on women and limiting their life chances. The aim of this study was to examine the impact the 2010 Haiti earthquake had on the seropositivity of female survivors.

METHOD

Using data from the Demographic and Health Survey, this study examines the impact of the 2010 Haiti earthquake on gender relations associated with the probability of being HIV positive through the differences-in-differences strategy.

RESULTS

A differential of four percentage points is observed in the probability of HIV seropositivity between men and women, favoring men. Additionally, it is observed that the probability of seropositivity intensifies when the cohabitation household is headed by a woman.

CONCLUSION

Disasters are not indifferent to the gender of the people affected. In the second decade of the 21st century, the conclusions obtained show, once again, the need for incorporating the gender perspective into the management of natural hazards in the field of health. This is the case of the differential exposure to HIV after the earthquake in Haiti.

Diabetes Mellitus Prevalence Among Haitian American Afro-Caribbeans in the United States

To measure the prevalence of diabetes mellitus among Haitian American Afro-Caribbeans, a quantitative descriptive cross-sectional study was conducted using a convenience sample of 151 Haitian Americans in New York, New Jersey, and Florida. The results of the study revealed an age-adjusted prevalence of diabetes mellitus of 39.9% (95% CI 29.8% - 50.1%). This is greater than the prevalence in the U.S. population (12%) (Z = 5.54, p < 0.05) and the prevalence in the Black, non-Hispanic population (16.8%) (Z = 3.35, p < 0.05). There were 79 (52.3%) individuals with diabetes mellitus, of which 21 (13.9%) were individuals who were previously undiagnosed; and 56 (37%) were individuals who were taking medication(s) for controlling glucose. At a 39.9% prevalence rate of diabetes, Haitian Americans have an age-adjusted prevalence rate of diabetes that is more than twice the prevalence rate of diabetes in Black, non-Hispanic Americans and more than 3 times the rate in White, non-Hispanics. This rate is comparable to the prevalence rate in Native Americans of the Pima tribe. An urgent need exists to confirm these findings in a larger cohort.

Tragedy in Haiti: Suicidality, PTSD, and Depression Associated with Intimate Partner Violence Among Haitian Women After the 2010 Earthquake

Across the world, suicidal behaviors are responsible for more than one million deaths each year. In Haiti, suicidal behaviors were found to be related to intimate partner violence (IPV) against women. This study was conducted after the 2010 earthquake in Haiti and women were asked about IPV before and after that event. A sample of women between 18 and 44 years of age responded to a questionnaire about physical, psychological, or sexual abuse by an intimate or non-intimate partner. The women were divided into two groups: (a) women who were abused by partners (n = 133) and (b) women who were not abused (n = 75). Those who were abused had 2.2 times higher odds for suicidal thoughts and 1.9 times higher odds for suicidal attempts and were significantly more likely to suffer from depression and PTSD. For each 1-unit increase in a measured PTSD score, the odds of being abused increased by 105.7%. For each 1-unit increase in the measured depression score, the odds of being abused increased by 14.9%.

Outcomes After Second-Line Antiretroviral Therapy in Children Living With HIV in Latin America

BACKGROUND

Little is known about the long-term outcomes of children living with HIV in Latin America. Few studies have examined antiretroviral therapy (ART) regimen switches in the years after the introduction of ART in this population. This study aimed to assess clinical outcomes among children who started second-line ART in the Caribbean, Central and South America network for HIV epidemiology.

METHODS

Children (<18 years old) with HIV who switched to second-line ART at sites within Caribbean, Central and South America network for HIV epidemiology were included. The cumulative incidence and relative hazards of virologic failure while on second-line ART, loss to follow-up, additional major ART regimen changes, and all-cause mortality were evaluated using competing risks methods and Cox models.

RESULTS

A total of 672 children starting second-line ART were included. Three years after starting second-line ART, the cumulative incidence of death was 0.10 [95% confidence interval (CI) 0.08 to 0.13], loss to follow-up was 0.14 (95% CI: 0.11 to 0.17), and major regimen change was 0.19 (95% CI: 0.15 to 0.22). Of those changing regimens, 35% were due to failure and 11% due to toxicities/side effects. Among the 312 children with viral load data, the cumulative incidence of virologic failure at 3 years was 0.62 (95% CI: 0.56 to 0.68); time to virologic failure and regimen change were uncorrelated (rank correlation -0.001; 95% CI -0.18 to 0.17).

CONCLUSIONS

Poor outcomes after starting second-line ART in Latin America were common. The high incidence of virologic failure and its poor correlation with changing regimens was particularly worrisome. Additional efforts are needed to ensure children receive optimal ART regimens.

Success of community approach to HPV vaccination in school-based and non-school-based settings in Haiti

OBJECTIVES

To assess the success of a human papillomavirus (HPV) vaccination program among adolescent girls aged 9-14 years in Haiti and to understand predictors of completion of a two-dose HPV vaccination series.

METHODS

Data collection was conducted during HPV vaccination campaigns in Port-au-Prince between August 2016 and April 2017. Descriptive statistics and logistic regression models were used to examine characteristics associated with vaccination series completion of school based and non-school based vaccination delivery modalities.

RESULTS

Of the 2,445 adolescent girls who participated in the awareness program, 1,994 participants (1,307 in non-school program, 687 in school program) received the first dose of the vaccine; 1,199 (92%) in the non-school program and 673 (98%) in the school program also received the second dose. Menarche (OR: 1.87; 95% CI, 1.11-3.14), if the participant was a prior patient at the GHESKIO clinics (OR: 2.17; 95% CI, 1.32-3.58), and participating in the school-based program (OR: 4.17; 95% CI, 2.14-8.12) were significantly associated with vaccination completion.

CONCLUSIONS

Vaccination in school- and non-school-based settings was successful, suggesting that a nationwide HPV vaccination campaign using either approach would be successful using either approach.

Nationwide Monitoring for Plasmodium falciparum Drug-Resistance Alleles to Chloroquine, Sulfadoxine, and Pyrimethamine, Haiti, 2016-2017

Haiti is striving for zero local malaria transmission by the year 2025. Chloroquine remains the first-line treatment, and sulfadoxine/pyrimethamine (SP) has been used for mass drug-administration pilot programs. In March 2016, nationwide molecular surveillance was initiated to assess molecular resistance signatures for chloroquine and SP. For 778 samples collected through December 2017, we used Sanger sequencing to investigate putative resistance markers to chloroquine (Pfcrt codons 72, 74, 75, and 76), sulfadoxine (Pfdhps codons 436, 437, 540, 581, 613), and pyrimethamine (Pfdhfr codons 50, 51, 59, 108, 164). No parasites harbored Pfcrt point mutations. Prevalence of the Pfdhfr S108N single mutation was 47%, and we found the triple mutant Pfdhfr haplotype (108N, 51I, and 59R) in a single isolate. We observed no Pfdhps variants except in 1 isolate (A437G mutation). These data confirm the lack of highly resistant chloroquine and SP alleles in Haiti and support the continued use of chloroquine and SP.

Delineating and Analyzing Locality-Level Determinants of Cholera, Haiti

Centre Department, Haiti, was the origin of a major cholera epidemic during 2010–2019. Although no fine-scale spatial delineation is officially available, we aimed to analyze determinants of cholera at the local level and identify priority localities in need of interventions. After estimating the likely boundaries of 1,730 localities by using Voronoi polygons, we mapped 5,322 suspected cholera cases reported during January 2015–September 2016 by locality alongside environmental and socioeconomic variables. A hierarchical clustering on principal components highlighted 2 classes with high cholera risk: localities close to rivers and unimproved water sources (standardized incidence ratio 1.71, 95% CI 1.02–2.87; p = 0.04) and urban localities with markets (standardized incidence ratio 1.69, 95% CI 1.25–2.29; p = 0.0006). Our analyses helped identify and characterize areas where efforts should be focused to reduce vulnerability to cholera and other waterborne diseases; these methods could be used in other contexts.

Orthobunyaviruses in the Caribbean: Melao and Oropouche virus infections in school children in Haiti in 2014

We report the identification of two orthobunyaviruses, Melao virus (MELV) and Oropouche virus (OROV), in plasma specimens from Haitian children with acute febrile illness who presented during outbreaks caused by alpha- and flaviviruses in 2014. Heretofore not described as a human pathogen, MELV was isolated in cell culture from the plasma of five case patients. OROV RNA was detected in the plasma of an additional child, using an unbiased sequencing approach, with phylogenetic inference suggesting a close relationship with strains from Brazil. Abdominal pain was reported by four case patients with MELV infections, with lymphadenopathy noted in two cases. Our findings document the occurrence of these orthobunyaviruses within the Caribbean region and highlight the critical importance of surveillance with viral genome sequence analyses to identify outbreaks caused by these and other emerging viruses.

Melao and Oropuche virus infections were detected in Haitian children who developed acute febrile illnesses in year 2014. As these viruses were not previously known to circulate in Haiti, our findings highlight the critical importance of surveillance to identify outbreaks caused by these and other emerging viruses.

The urgency of resuming disrupted dog rabies vaccination campaigns: a modeling and cost-effectiveness analysis

Dog vaccination is a cost-effective approach to preventing human rabies deaths. In Haiti, the last nation-wide dog vaccination campaign occurred in 2018. We estimated the number of human lives that could be saved by resuming dog vaccination in 2021 compared to 2022 and compared the cost-effectiveness of these two scenarios. We modified a previously published rabies transmission and economic model to estimate trends in dog and human rabies cases in Haiti from 2005 to 2025, with varying assumptions about when dog vaccinations resume. We compared model outputs to surveillance data on human rabies deaths from 2005 to 2020 and animal rabies cases from 2018 to 2020. Model predictions and surveillance data both suggest a 5- to 8-fold increase in animal rabies cases occurred in Haiti's capital city between Fall 2019 and Fall 2020. Restarting dog vaccination in Haiti in 2021 compared to 2022 could save 285 human lives and prevent 6541 human rabies exposures over a five-year period. It may also decrease program costs due to reduced need for human post-exposure prophylaxis. These results show that interruptions in dog vaccination campaigns before elimination is achieved can lead to significant human rabies epidemics if not promptly resumed.

Differences in factors associated with anemia in Haitian children from urban and rural areas

BACKGROUND

In Haiti, differences in the prevalence of anemia between urban and rural areas have been observed.

OBJECTIVE

To identify moderating factors that may help explain the difference in the prevalence of anemia in children from poor urban vs. rural areas of Haiti.

METHODS

This cross-sectional study used secondary data from urban and rural school-based trials that assessed the effectiveness of a nutrition intervention. The study was registered at ClinicalTrials.gov as NCT02747524. A total of 300 rural- and 981 urban- children between 2.5-13 years of age were included in this analysis. Effect modification in a binary logistic generalized linear mixed model was conducted using sample weights in SPSS® version 26. Models were adjusted for age and income. School cluster was included as random effect.

RESULTS

In rural areas, stunting was more prevalent in children with anemia vs. no anemia, (16.6%, and 6.3%, P = 0.008), respectively. Also, rural children with anemia lived with fewer adults vs. rural children with no anemia, ([Formula: see text] = 2.83±1.29, and 3.30±1.54, P = 0.005), respectively. In poor urban areas, helminth morbidities were more frequent in children with anemia vs. no anemia, (21.9% vs. 13.9, P = 0.011), respectively. In the combined sample, stunting, [AOR = 2.05; 95%CI (1.32-3.18)], age [AOR = 0.89; 95%CI (0.85-0.93)], and households with more adults [AOR = 0.77; 95%CI (0.67-0.87)] were associated with anemia. Effect modification by place of residence was observed in households with more adults (t = 3.83, P<0.001). No other nutritional, dietary, sanitation or morbidity factors or effect modifiers were observed.

CONCLUSIONS

In this sample, factors associated with anemia differed in poor urban and rural children from Haiti including family structure and helminth morbidities. Stunting and lower age increased the odds of anemia in the combined sample. Family structure appears to have an important role in anemia, and further research understanding the influence of family structures in anemia is needed.

Rapid Screening for Non-falciparum Malaria in Elimination Settings Using Multiplex Antigen and Antibody Detection: Post Hoc Identification of Plasmodium malariae in an Infant in Haiti

Haiti is targeting malaria elimination by 2025. The Grand'Anse department in southwestern Haiti experiences one-third to half of all nationally reported Plasmodium falciparum cases. Although there are historical reports of Plasmodium vivax and Plasmodium malariae, today, non-falciparum infections would remain undetected because of extensive use of falciparum-specific histidine-rich protein 2 (HRP2) rapid diagnostic tests (RDT) at health facilities. A recent case-control study was conducted in Grand'Anse to identify risk factors for P. falciparum infection using HRP2-based RDTs (n = 1,107). Post hoc multiplex Plasmodium antigenemia and antibody (IgG) detection by multiplex bead assay revealed one blood sample positive for pan-Plasmodium aldolase, negative for P. falciparum HRP2, and positive for IgG antibodies to P. malariae. Based on this finding, we selected 52 samples with possible P. malariae infection using IgG and antigenemia data and confirmed infection status by species-specific PCR. We confirmed one P. malariae infection in a 6-month-old infant without travel history. Congenital P. malariae could not be excluded. However, our finding-in combination with historical reports of P. malariae-warrants further investigation into the presence and possible extent of non-falciparum malaria in Haiti. Furthermore, we showed the use of multiplex Plasmodium antigen and IgG detection in selecting samples of interest for subsequent PCR analysis, thereby reducing costs as opposed to testing all available samples by PCR. This is of specific use in low-transmission or eliminating settings where infections are rare.

Treatment success for patients with tuberculosis receiving care in areas severely affected by Hurricane Matthew - Haiti, 2016

BACKGROUND

On October 4, 2016, Hurricane Matthew struck southwest Haiti as a category 4 storm. The goal of this study was to evaluate the impact of the hurricane on tuberculosis (TB) services and patient outcomes in the three severely affected departments-Sud, Grand'Anse, and Nippes-of southwest Haiti.

METHODS

We developed a standard questionnaire to assess a convenience sample of health facilities in the affected areas, a patient tracking form, and a line list for tracking all patients with drug-susceptible TB registered in care six months before the hurricane. We analyzed data from the national TB electronic surveillance system to determine outcomes for all patients receiving anti-TB treatment in the affected areas. We used logistic regression analysis to determine factors associated with treatment success.

RESULTS

Of the 66 health facilities in the three affected departments, we assessed 31, accounting for 536 (45.7%) of 1,174 TB patients registered in care when Hurricane Matthew made landfall in Haiti. Three (9.7%) health facilities sustained moderate to severe damage, whereas 18 (58.1%) were closed for <1 week, and five (16.1%) for ≥1 week. Four weeks after the hurricane, 398 (73.1%) of the 536 patients in the assessed facilities were located. Treatment success in the affected departments one year after the hurricane was 81.4%. Receiving care outside the municipality of residence (adjusted odds ratio [aOR]: 0.46, 95% confidence interval [CI]: 0.27-0.80) and HIV positivity (aOR: 0.31, 95% CI: 0.19-0.51) or unknown HIV status (aOR: 0.49, 95% CI: 0.33-0.74) were associated with significantly lower rates of treatment success.

CONCLUSIONS

Despite major challenges, a high percentage of patients receiving anti-TB treatment before the hurricane were located and successfully treated in southwest Haiti. The lessons learned and results presented here may help inform policies and guidelines in similar settings for effective TB control after a natural disaster.

Drug-resistant TB prevalence study in 5 health institutions in Haiti

Objectives

Tuberculosis (TB) is the leading infectious cause of death in the world. Multi-drug resistant TB (MDR-TB) is a major public health problem as treatment is long, costly, and associated to poor outcomes. Here, we report epidemiological data on the prevalence of drug-resistant TB in Haiti.

Methods

This cross-sectional prevalence study was conducted in five health centers across Haiti. Adult, microbiologically confirmed pulmonary TB patients were included. Molecular genotyping (rpoB gene sequencing and spoligotyping) and phenotypic drug susceptibility testing were used to characterize rifampin-resistant MTB isolates detected by Xpert MTB/RIF.

Results

Between April 2016 and February 2018, 2,777 patients were diagnosed with pulmonary TB by Xpert MTB/RIF screening and positive MTB cultures. A total of 74 (2.7%) patients were infected by a drug-resistant (DR-TB) M. tuberculosis strain. Overall HIV prevalence was 14.1%. Patients with HIV infection were at a significantly higher risk for infection with DR-TB strains compared to pan-susceptible strains (28.4% vs. 13.7%, adjusted odds ratio 2.6, 95% confidence interval 1.5–4.4, P = 0.001). Among the detected DR-TB strains, T1 (29.3%), LAM9 (13.3%), and H3 (10.7%) were the most frequent clades. In comparison with previous spoligotypes studies with data collected in 2000–2002 and in 2008–2009 on both sensitive and resistant strains of TB in Haiti, we observed a significant increase in the prevalence of the drug-resistant MTB Spoligo-International-Types (SIT) 137 (X2 clade: 8.1% vs. 0.3% in 2000–02 and 0.9% in 2008–09, p<0.001), 5 (T1 clade: 6.8% vs 1.9 in 2000–02 and 1.7% in 2008–09, P = 0.034) and 455 (T1 clade: 5.4% vs 1.6% and 1.1%, P = 0.029). Newly detected spoligotypes (SIT 6, 7, 373, 909 and 1624) were also recorded.

Conclusion

This study describes the genotypic and phenotypic characteristics of DR-TB strains circulating in Haiti from April 2016 to February 2018. Newly detected MTB clades harboring multi-drug resistance patterns among the Haitian population as well as the higher risk of MDR-TB infection in HIV-positive people highlights the epidemiological relevance of these surveillance data. The importance of detecting RIF-resistant patients, as proxy for MDR-TB in peripheral sites via molecular techniques, is particularly important to provide adequate patient case management, prevent the transmission of resistant strains in the community and to contribute to the surveillance of resistant strains.

Revitalizing Graduate Medical Education in Global Settings: Lessons From Post-Earthquake Haiti

Following the massive 7.0-magnitude earthquake that devastated much of the Haitian capital city of Port-au-Prince on January 12, 2010, the Haitian health system and its medical education programs were fragmented, fragile, and facing a significant, overwhelming demand for clinical care. In response, the authors of this paper and the institutions they represent supported the development of a teaching hospital that could fill the void in academic training capacity while prioritizing the health of Haiti's rural poor-goals aligned with the Haitian Ministry of Health (MOH) strategy. This bold initiative aimed to address both the immediate and long-term health care needs within post-disaster Haiti through a strategic investment in graduate medical education (GME). Here, the authors describe their approach, which included building consensus, aspiring to international standards, and investing in shared governance structures under Haitian leadership. The Haitian MOH strategy and priorities guided the development, implementation, and expansion of solutions to the ongoing crisis in human resources for health within the acute context. Local leadership of this initiative ensured a sustained and transformative model of GME that has carried Haiti beyond acute relief and toward a more reliable health system. The enduring success can be measured through sustained governance systems, graduates who have remained in Haiti, standardized curricula, a culture of continuous improvement, and the historic achievement of international accreditation. While ongoing challenges persist, Haiti has demonstrated that the strategy of investing in GME in response to acute disasters should be considered in other global settings to support the revitalization of tenuous health systems.

Comparative analysis of COVID-19 guidelines from six countries: a qualitative study on the US, China, South Korea, the UK, Brazil, and Haiti

BACKGROUND

In late January, a worldwide crisis known as COVID-19 was declared a Public Health Emergency of International Concern by the WHO. Within only a few weeks, the outbreak took on pandemic proportions, affecting over 100 countries. It was a significant issue to prevent and control COVID-19 on both national and global scales due to the dramatic increase in confirmed cases worldwide. Government guidelines provide a fundamental resource for communities, as they guide citizens on how to protect themselves against COVID-19, however, they also provide critical guidance for policy makers and healthcare professionals on how to take action to decrease the spread of COVID-19. We aimed to identify the differences and similarities between six different countries' (US, China, South Korea, UK, Brazil and Haiti) government-provided community and healthcare system guidelines, and to explore the relationship between guideline issue dates and the prevalence/incidence of COVID-19 cases.

METHODS

To make these comparisons, this exploratory qualitative study used document analysis of government guidelines issued to the general public and to healthcare professionals. Documents were purposively sampled (N = 55) and analyzed using content analysis.

RESULTS

The major differences in the evaluation and testing criteria in the guidelines across the six countries centered around the priority of testing for COVID-19 in the general population, which was strongly dependent on each country's healthcare capacity. However, the most similar guidelines pertained to the clinical signs and symptoms of COVID-19, and methods to prevent its contraction.

CONCLUSION

In the initial stages of the outbreak, certain strategies were universally employed to control the deadly virus's spread, including quarantining the sick, contact tracing, and social distancing. However, each country dealt with differing healthcare capacities, risks, threats, political and socioeconomic challenges, and distinct healthcare systems and infrastructure. Acknowledging these differences highlights the importance of examining the various countries' response to the COVID-19 pandemic with a nuanced view, as each of these factors shaped the government guidelines distributed to each country's communities and healthcare systems.

High Prevalence of HIV-1 Drug Resistance and Dynamics of Transmission Among High-Risk Populations in Port-au-Prince, Haiti

BACKGROUND

In low HIV prevalence settings, understanding the transmission dynamics and the impact of drug resistance is critical to curb down the epidemic. This study aims to explore the prevalence and dynamics of transmission of HIV drug-resistance mutations (DRMs) among key populations in Haiti.

SETTINGS

Eligible participants (naive, treated) were selected from 7 key population friendly health care centers in Port-au-Prince, Haiti, from September 2018 to July 2019.

METHODS

A total of 119 HIV-1 pol sequences were analyzed from men having sex with men (MSM), female sex workers (FSWs), and their sexual partners. Screening for HIV DRMs was performed using the Stanford University Drug Resistance Database. Phylogenetic and network analyses using HIV-TRACE software were performed to infer putative relationships and shared DRMs.

RESULTS

Of the 119 participants, 62.2% were men (74/119), and 75.7% of them (56/74) reported MSM as a main risk factor. The overall DRM prevalence was 58.8% (70/119). A DRM was observed in 37.5% of MSM (21/56), 82.2% of FSWs (37/45), and 66.7% (12/18) among FSWs' clients. In a multivariate model, age and FSWs were significant predictors for DRMs (P = 0.001). Transmission network analysis found 24 of the 119 (20.2%) genetically linked individuals forming 8 clusters. Clustering participants were mostly MSM (15/24; 62.5%). Five clusters (62.5%) had shared DRMs, and K103N and M184V were the main shared mutations.

CONCLUSIONS

High prevalence of HIV DRMs was observed among MSM, FSWs, and their clients in Port-au-Prince, Haiti. Network analysis revealed frequent DRM transmission among genetically linked individuals, highlighting the need for appropriate interventions to limit HIV transmission in these high-risk populations.

Sexual victimization, PTSD, depression, and social support among women survivors of the 2010 earthquake in Haiti: a moderated moderation model

BACKGROUND

In 2010, an important earthquake devastated Haiti and caused thousands of deaths. In a social context where women are particularly vulnerable, this cross-sectional study examined the associations between sexual assaults experienced by women before the earthquake, the earthquake exposure, the traumatic consequences, and their satisfaction of social support received.

METHODS

A total of 660 women aged 18 to 86 completed questionnaires assessing exposure to the earthquake, sexual assault victimization, peritraumatic distress, Posttraumatic stress disorder (PTSD), depression, and social support. A moderated moderation model was computed to examine associations between exposure to the earthquake, sexual assault, social support, and traumatic consequences.

RESULTS

Results showed that 31.06% of women were victims of sexual assault before the earthquake. They presented higher prevalence of peritraumatic distress, PTSD, and depression symptoms, compared to non-victims. The moderated-moderation model showed that sexual assault and exposure to the earthquake were positively associated with traumatic consequences (respectively, B = 0.560, p < 0.001; B = 0.196, p < 0.001), while social support was negatively associated with them (B = -0.095, p < 0.05). Results showed a triple interaction: women victim of sexual assault who were satisfied with received social support are less likely to develop traumatic consequences after being exposed to the earthquake(B = -0.141, p < 0.01).

CONCLUSIONS

By demonstrating the role of sexual assault in the development of mental health problems after the Haitian earthquake, this study shows the importance for clinicians to investigate interpersonal trauma experienced before or following natural disasters among survivors. Results also indicate the key role of family and communities to help survivors build resilience and coping strategies with their social support.

The Haiti cardiovascular disease cohort: study protocol for a population-based longitudinal cohort

BACKGROUND

Cardiovascular disease (CVD) is the leading cause of mortality among Haitians, having surpassed HIV in the last decade. Understanding the natural history of CVD in Haitians, including the age of onset, prevalence, incidence, and role of major risk factors and social determinants, is urgently needed to develop prevention and treatment interventions. Aim 1: Establish a population-based cohort of 3000 adults from Port-au-Prince and assess the prevalence of CVD risk factors and diseases and their association with social and environmental determinants. Aim 2: Determine the incidence of CVD risk factors and CVD during 2-3.5 years of follow-up and their association with social and environmental determinants.

METHODS

The Haiti CVD Cohort is a longitudinal observational study of 3000 adults > 18 years in Port-au-Prince (PAP), Haiti. The study population is recruited using multistage random sampling from census blocks. Adults receive blood pressure (BP) measurements in the community and those with elevated BP are referred to the Groupe Haitien d'Etude Sarcome de Kaposi et des Infections Opportunistes Clinic for care. After informed consent, participants undergo a clinical exam with medical history. BP, electrocardiogram, echocardiogram, a study questionnaire on health behaviors, and laboratory specimens. Every 6 months, BP is remeasured. At 12 and 24 months, clinical exams and questionnaires are repeated. Labs are repeated at 24 months. Adjudicated study outcomes include the prevalence and incidence of CVD risk factors (hypertension, diabetes, obesity, dyslipidemia, kidney disease, inflammation, poor diet, smoking, and physical inactivity) and events (myocardial infarction, heart failure, stroke, and CVD mortality). We also measure social determinants including poverty. Depression, stress, social isolation, food insecurity, and lead exposure. Blood, urine, and stool samples are biobanked at study enrollment.

DISCUSSION

The Haiti CVD Cohort is the largest population-based cohort study evaluating CVD risk factors and CVD among adults in urban Haiti with the goal of understanding the drivers of the CVD epidemic in Haiti. Study outcomes are comparable with existing international cohorts, and the biobank will provide important data for future research. Our goal is to translate findings from this study into pragmatic prevention and treatment interventions to fight the CVD epidemic in Haiti.

Risk factors for delayed viral suppression on first-line antiretroviral therapy among persons living with HIV in Haiti, 2013-2017

Studies of viral suppression on first-line antiretroviral therapy (ART) in persons living with human immunodeficiency virus (PLHIV) in Haiti are limited, particularly among PLHIV outside of the Ouest department, where the capital Port-au-Prince is located. This study described the prevalence and risk factors for delayed viral suppression among PLHIV in all geographic departments of Haiti between 2013 and 2017. Individuals who received viral load testing 3 to 12 months after ART initiation were included. Data on demographics and clinical care were obtained from the Haitian Active Longitudinal Tracking of HIV database. Multivariable logistic regression was performed to predict delayed viral suppression, defined as a viral load ≥1000 HIV-1 RNA copies/mL after at least 3 months on ART. Viral load test results were available for 3,368 PLHIV newly-initiated on ART. Prevalence of delayed viral suppression was 40%, which is slightly higher than previous estimates in Haiti. In the multivariable analysis, delayed viral suppression was significantly associated with younger age, receiving of care in the Ouest department, treatment with lamivudine (3TC), zidovudine (AZT), and nevirapine (NVP) combined ART regimen, and CD4 counts below 200 cells/mm³. In conclusion, this study was the first to describe and compare differences in delayed viral suppression among PLHIV by geographic department in Haiti. We identified populations to whom public health interventions, such as more frequent viral load testing, drug resistance testing, and ART adherence counseling should be targeted.

Does distance from a clinic and poverty impact visit adherence for noncommunicable diseases? A retrospective cohort study using electronic medical records in rural Haiti

BACKGROUND

Adherence to regular outpatient visits is vital to managing noncommunicable diseases (NCDs), a growing burden in low and middle-income countries. We characterized visit adherence among patients with NCDs in rural Haiti, hypothesizing higher poverty and distance from the clinic were associated with lower adherence.

METHODS

We analyzed electronic medical records from a cohort of adults in an NCD clinic in Mirebalais, Haiti (April 2013 to June 2016). Visit adherence was: 1) visit constancy (≥1 visit every 3 months), 2) no gaps in care (> 60 days between visits), 3) ≥1 visit in the last quarter, and 4) ≥6 visits per year. We incorporated an adapted measure of intensity of multidimensional poverty. We calculated distance from clinic as Euclidean distance or self-reported transit time. We used multivariable logistic regressions to assess the association between poverty, distance, and visit adherence.

RESULTS

We included 463 adult patients, mean age 57.8 years (SE 2.2), and 72.4% women. Over half of patients had at least one visit per quarter (58.1%), but a minority (19.6%) had no gaps between visits. Seventy percent of patients had a visit in the last quarter, and 73.9% made at least 6 visits per year. Only 9.9% of patients met all adherence criteria. In regression models, poverty was not associated with any adherence measures, and distance was only associated with visit in the last quarter (OR 0.87, 95% CI [0.78 to 0.98], p = 0.03) after adjusting for age, sex, and hardship financing.

CONCLUSIONS

Visit adherence was low in this sample of adult patients presenting to a NCD Clinic in Haiti. Multidimensional poverty and distance from clinic were not associated with visit adherence measures among patients seen in the clinic, except for visit in the last quarter. Future research should focus on identifying and addressing barriers to visit adherence.

Mortality, morbidity and clinical care in a referral neonatal intensive care unit in Haiti

Background

Neonatal mortality rates in Haiti are among the highest in the Western hemisphere. Few mothers deliver with a skilled birth attendant present, and there is a significant lack of pediatricians. The neonatal intensive care unit (NICU) at St. Damien Pediatric Hospital, a national referral center, is one of only five neonatology departments in Haiti. In order to target limited resources toward improving outcomes, this study seeks to describe clinical care in the St. Damien NICU.

Methods

A retrospective medical record review was performed on available medical records on all admissions to the NICU between April 2016 and April 2017.

Results

220 neonates were admitted to the NICU within the study epoch. The mortality rate was 14.5%. Death was associated with a maternal diagnosis of hypertension (p = 0.03) and neonatal diagnoses of lower gestational age (p<0.0001), lower birth weight (p<0.0001), prematurity (p = 0.002), RDS p = 0.01), sepsis (p<0.0001) and kernicterus (p = 0.04). The most common diagnoses were sepsis, chorioamnionitis, respiratory distress syndrome, jaundice, prematurity and perinatal asphyxia.

Conclusions

This study demonstrates that preterm birth, sepsis, RDS and kernicterus are key contributors to neonatal mortality in a Haitian national pediatric referral center NICU and as such are promising interventional targets for reducing the neonatal mortality rate in Haiti.

Hurricane impact associated with transactional sex and moderated, but not mediated, by economic factors in Okay, Haiti

Natural disasters, such as hurricanes, often negatively affect the economic wellbeing of affected individuals. Under such conditions, women may engage in transactional sexual behaviors in order to compensate for lost income and provide for their households. In this study, we evaluated the relationship between hurricane impact and transactional sex and if this relationship was moderated, or mediated, through economic factors. Between December 2017 and February 2018, approximately one year after the area was hit by a category 4 hurricane (Hurricane Matthew), we interviewed a random sample of female microfinance members (n = 304) in Okay, Haiti. We estimated the association between hurricane impact and transactional sex using log-binomial regression. Next, we tested for economic moderation of this relationship by incorporating interaction terms between hurricane impact and food insecurity, poverty, and loss of income generating materials in three separate log-binomial models. Finally, we assessed possible mediation of this relationship by loss of income generating resources and a latent variable, economic stress, using a structural equation model. We found participants who had experienced hurricane impact were 58% more likely to have engaged in transactional sex [prevalence ratio (95% confidence interval): 1.58 (1.19-2.09)]. This relationship was significant and strongly positive among women who were food insecure and had high poverty but not so among women who were food secure and had low poverty, respectively. The final structural equation model (with fit: χ2 = 19.700, degrees of freedom = 15; CFI = 0.958; TLI = 0.941; RMSEA = 0.040) revealed that the relationship was not mediated through economic factors. However, the association between hurricane impact and transactional sex remained significant while controlling for these economic factors. Notably, the findings that the relationship between hurricane impact and transactional sex was moderated, but not mediated, by economic factors implies populations at-risk of experiencing natural disasters should be preemptively targeted with economic interventions to build capacity and resilience before such a disaster hits.

Female Sex Workers' Experiences of Violence and Substance Use on the Haitian, Dominican Republic Border

Background

Female sex workers (FSW) are socially and economically marginalized, and this vulnerability can be exacerbated when they hold the intersectional identity of also being an immigrant, such as in the case of Haitian FSWs in the Dominican Republic.

Objective

Considering that half of migratory young women and girls relocating across the Latin American and Caribbean region do so without their families, increasing the likelihood of experiencing abuses, our primary objective was to test the hypothesis that Haitian FSWs in the Dominican Republic have higher odds of being physically abused by sexual partners compared to Haitian FSWs in Haiti.

Methods

We conducted bivariate analyses and multivariate analyses on 2014 Hispaniola Sex Workers Study (N = 232).

Findings

Approximately 80% of Haitian FSWs in the Dominican Republic reported experiencing violence by a regular partner (80.3%), compared with 60.0% of Haitian FSWs in Haiti (χ2 = 11.34, p < 0.001). Controlling for socio-demographics, substance use, childhood abuse, and sexual behaviors, Haitian FSWs in Haiti maintained lower odds of experiencing violence by a regular partner (OR:0.37, p < 0.01) and higher odds of experiencing violence from a coworker (OR:6.38, p < 0.001) compared to FSWs in the Dominican Republic. Using sex to avoid arrest is associated with higher odds of experiencing violence by a client and violence by a coworker (OR:2.18, p < 0.05; OR:3.74, p < 0.001; respectively). Accepting payment in the form of drugs/alcohol is associated with higher odds of experiencing physical violence by a regular partner but lower odds of experiencing violence by a client (OR:3.99, p < 0.05; OR:0.43, p < 0.05; respectively).

Conclusions

Assuming health is a human right, then practitioners and scholars must actively collaborate to fortify vulnerable populations against injurious structural and sociocultural forces examining the intersectionality and compound effects of multiple stigmatized identities, in this study being an FSW and an immigrant, that moderate the potential positive effects of public health interventions.