Karmel W. Choi
Duke University
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Featured researches published by Karmel W. Choi.
Trauma, Violence, & Abuse | 2016
Karmel W. Choi; Kathleen J. Sikkema
Perinatal mood and anxiety disorders (PMADs) compromise maternal and child well-being and may be influenced by traumatic experiences across the life course. A potent and common form of trauma is childhood maltreatment, but its specific impact on PMADs is not well understood. A systematic review was undertaken to synthesize empirical literature on the relationship between maternal histories of childhood maltreatment and PMADs. Of the 876 citations retrieved, 35 reports from a total of 26,239 participants met inclusion criteria, documenting substantial rates of childhood maltreatment and PMADs. Robust trends of association were observed between childhood maltreatment and perinatal depression, as well as post-traumatic stress disorder, but findings for anxiety were less consistent. Examining multivariate results suggested that childhood maltreatment predicts PMADs above and beyond sociodemographic, psychiatric, perinatal, and psychosocial factors, but may also be partially mediated by variables such as later victimization and moderated by protective early relationships. Future research should test mediating and moderating pathways using prospective cohorts, expanding to cross-cultural settings and other disorder outcomes. Treatment and prevention of childhood maltreatment and its sequelae may help mitigate risk for perinatal psychopathology and its impact on maternal and child outcomes.
BMC Pregnancy and Childbirth | 2014
Karmel W. Choi; Laurie Abler; Melissa H. Watt; Lisa A. Eaton; Seth C. Kalichman; Donald Skinner; Desiree Pieterse; Kathleen J. Sikkema
BackgroundSouth Africa has one of the world’s highest rates of fetal alcohol spectrum disorder (FASD) and interpersonal trauma. These co-occurring public health problems raise the need to understand alcohol consumption among trauma-exposed pregnant women in this setting. Since a known predictor of drinking during pregnancy is drinking behavior before pregnancy, this study explored the relationship between women’s drinking levels before and after pregnancy recognition, and whether traumatic experiences – childhood abuse or recent intimate partner violence (IPV) – moderated this relationship.MethodsWomen with incident pregnancies (N = 66) were identified from a longitudinal cohort of 560 female drinkers in a township of Cape Town, South Africa. Participants were included if they reported no pregnancy at one assessment and then reported pregnancy four months later at the next assessment. Alcohol use was measured by the Alcohol Use Disorders Identification Test (AUDIT), and traumatic experiences of childhood abuse and recent IPV were also assessed. Hierarchical linear regressions controlling for race and age examined childhood abuse and recent IPV as moderators of the effect of pre-pregnancy recognition drinking on post-pregnancy recognition AUDIT scores.ResultsFollowing pregnancy recognition, 73% of women reported drinking at hazardous levels (AUDIT ≥ 8). Sixty-four percent reported early and/or recent exposure to trauma. While drinking levels before pregnancy significantly predicted drinking levels after pregnancy recognition, t(64) = 3.50, p < .01, this relationship was moderated by experiences of childhood abuse, B = -.577, t(60) = -2.58, p = .01, and recent IPV, B = -.477, t(60) = -2.16, p = .04. Pregnant women without traumatic experiences reported drinking at levels consistent with levels before pregnancy recognition. However, women with traumatic experiences tended to report elevated AUDIT scores following pregnancy recognition, even if low-risk drinkers previously.ConclusionThis study explored how female drinkers in South Africa may differentially modulate their drinking patterns upon pregnancy recognition, depending on trauma history. Our results suggest that women with traumatic experiences are more likely to exhibit risky alcohol consumption when they become pregnant, regardless of prior risk. These findings illuminate the relevance of trauma-informed efforts to reduce FASD in South Africa.
Substance Use & Misuse | 2014
Karmel W. Choi; Melissa H. Watt; Jessica C. MacFarlane; Kathleen J. Sikkema; Donald Skinner; Desiree Pieterse; Seth C. Kalichman
This study explored narratives of drinking as a coping strategy among female drinkers in a South African township. In 2010–2011, we conducted qualitative in-depth interviews with 54 women recruited from 12 alcohol-serving venues. Most women drank heavily and linked their drinking to stressors. They were motivated to use drinking to manage their emotions, facilitate social engagement, and achieve a sense of empowerment, even while recognizing the limitations of this strategy. This study helps to contextualize heavy drinking behavior among women in this setting. Multifaceted interventions that help female drinkers to more effectively manage stressors may aid in reducing hazardous drinking.
Journal of Affective Disorders | 2017
Karmel W. Choi; Kathleen J. Sikkema; Bavi Vythilingum; Lut Geerts; Sheila Faure; Melissa H. Watt; Annerine Roos; Dan J. Stein
BACKGROUND Women who have experienced childhood trauma may be at risk for postpartum depression, increasing the likelihood of negative outcomes among their children. Predictive pathways from maternal childhood trauma to child outcomes, as mediated by postpartum depression, require investigation. METHODS A longitudinal sample of South African women (N=150) was followed through pregnancy and postpartum. Measures included maternal trauma history reported during pregnancy; postpartum depression through six months; and maternal-infant bonding, infant development, and infant physical growth at one year. Structural equation models tested postpartum depression as a mediator between maternal experiences of childhood trauma and childrens outcomes. A subset of women (N=33) also participated in a lab-based emotional Stroop paradigm, and their responses to fearful stimuli at six weeks were explored as a potential mechanism linking maternal childhood trauma, postpartum depression, and child outcomes. RESULTS Women with childhood trauma experienced greater depressive symptoms through six months postpartum, which then predicted negative child outcomes at one year. Mediating effects of postpartum depression were significant, and persisted for maternal-infant bonding and infant growth after controlling for covariates and antenatal distress. Maternal avoidance of fearful stimuli emerged as a potential affective mechanism. LIMITATIONS Limitations included modest sample size, self-report measures, and unmeasured potential confounders. CONCLUSIONS Findings suggest a mediating role of postpartum depression in the intergenerational transmission of negative outcomes. Perinatal interventions that address maternal trauma histories and depression, as well as underlying affective mechanisms, may help interrupt cycles of disadvantage, particularly in high-trauma settings such as South Africa.
Global mental health (Cambridge, England) | 2015
Kathleen J. Sikkema; Alexis C. Dennis; Melissa H. Watt; Karmel W. Choi; Tatenda T. Yemeke; John A. Joska
People living with HIV (PLWH) experience greater psychological distress than the general population. Evidence from high-incomes countries suggests that psychological interventions for PLWH can improve mental health symptoms, quality of life, and HIV care engagement. However, little is known about the effectiveness of mental health interventions for PLWH in low- and middle-income countries (LMICs), where the large majority of PLWH reside. This systematized review aims to synthesize findings from mental health intervention trials with PLWH in LMICs to inform the delivery of mental health services in these settings. A systematic search strategy was undertaken to identify peer-reviewed published papers of intervention trials addressing negative psychological states or disorders (e.g. depression, anxiety) among PLWH in LMIC settings. Search results were assessed against pre-established inclusion and exclusion criteria. Data from papers meeting criteria were extracted for synthesis. Twenty-six papers, published between 2000 and 2014, describing 22 unique interventions were identified. Trials were implemented in sub-Saharan Africa (n = 13), Asia (n = 7), and the Middle East (n = 2), and addressed mental health using a variety of approaches, including cognitive-behavioral (n = 18), family-level (n = 2), and pharmacological (n = 2) treatments. Four randomized controlled trials reported significant intervention effects in mental health outcomes, and 11 preliminary studies demonstrated promising findings. Among the limited mental health intervention trials with PLWH in LMICs, few demonstrated efficacy. Mental health interventions for PLWH in LMICs must be further developed and adapted for resource-limited settings to improve effectiveness.
Pain Research & Management | 2014
Karmel W. Choi; Tamara J. Somers; Michael A. Babyak; Kathleen J. Sikkema; James A. Blumenthal; Francis J. Keefe
The relationship between pain and overweight/obesity is bidirectional – excess weight can cause pain, yet eating food high in calories, fat and sugar has been shown to alleviate pain. It appears likely that overweight/obese individuals may turn to these types of foods when they experience pain, leading to weight gain; however, this phenomenon has not been examined to date. The authors of this study set out to elucidate the relationship between pain and food intake in obese and overweight patients with osteoarthritis.
BMC Psychiatry | 2014
Laurie Abler; Kathleen J. Sikkema; Melissa H. Watt; Lisa A. Eaton; Karmel W. Choi; Seth C. Kalichman; Donald Skinner; Desiree Pieterse
BackgroundIn South Africa, alcohol use poses a public health burden. Hazardous alcohol use often co-occurs with psychological distress (e.g., depression and post-traumatic stress). However, the majority of the research establishing the relationship between alcohol use and psychological distress has been cross-sectional, so the nature of co-occurring changes in psychological distress and alcohol use over time is not well characterized. The objective of this study is to examine the longitudinal relationship between psychological distress and alcohol use among South African women who attend alcohol serving venues.MethodsFour waves of data were collected over the course of a year from 560 women in a Cape Town township who attended drinking venues. At each assessment wave, participants reported depressive symptoms, post-traumatic stress symptoms, and alcohol use. Multilevel growth models were used to: 1) assess the patterns of alcohol use; 2) examine how depressive symptoms uniquely, post-traumatic stress symptoms uniquely, and depressive and post-traumatic stress symptoms together were associated with alcohol use; and 3) characterize the within person and between person associations of depressive symptoms and post-traumatic stress symptoms with alcohol use.ResultsWomen reported high levels of alcohol use throughout the study period, which declined slightly over time. Post-traumatic stress symptoms were highly correlated with depressive symptoms. Modeled separately, both within person and between person depressive and post-traumatic stress symptoms were uniquely associated with alcohol use. When modeled together, significant between person effects indicated that women who typically have more post-traumatic stress symptoms, when controlling for depressive symptoms, are at risk for increased alcohol use; however, women with more depressive symptoms, controlling for post-traumatic stress symptoms, do not have differential risk for alcohol use. Significant within person effects indicated an interaction between depressive and post-traumatic stress symptoms; women reported more alcohol use than usual at times when they had higher post-traumatic stress symptoms, and this increase in alcohol use was further exacerbated for women who also had higher depressive symptoms than usual.ConclusionsThese findings suggest that interventions targeting post-traumatic stress, especially when post-traumatic stress is comorbid with depression, may reduce alcohol use among South African women who drink.
Aids and Behavior | 2017
Melissa H. Watt; Alexis C. Dennis; Karmel W. Choi; Nonceba Ciya; John A. Joska; Corne Robertson; Kathleen J. Sikkema
South African women have disproportionately high rates of both sexual trauma and HIV. To understand how sexual trauma impacts HIV care engagement, we conducted in-depth qualitative interviews with 15 HIV-infected women with sexual trauma histories, recruited from a public clinic in Cape Town. Interviews explored trauma narratives, coping behaviors and care engagement, and transcripts were analyzed using a constant comparison method. Participants reported multiple and complex traumas across their lifetimes. Sexual trauma hindered HIV care engagement, especially immediately following HIV diagnosis, and there were indications that sexual trauma may interfere with future care engagement, via traumatic stress symptoms including avoidance. Disclosure of sexual trauma was limited; no women had disclosed to an HIV provider. Routine screening for sexual trauma in HIV care settings may help to identify individuals at risk of poor care engagement. Efficacious treatments are needed to address the psychological and behavioral sequelae of trauma.
Journal of Consulting and Clinical Psychology | 2017
Karmel W. Choi; Abigail W. Batchelder; Peter P. Ehlinger; Steven A. Safren; Conall O'Cleirigh
Objective: High rates of depression and posttraumatic stress disorder (PTSD) contribute to sexual risk, particularly in men who have sex with men (MSM) who have experienced childhood sexual abuse. The comorbidity between depression and PTSD and mechanisms by which they contribute to sexual risk in MSM remain unclear. This study sought to demonstrate the feasibility and utility of a network approach to (a) characterize symptom interconnections between depression and PTSD in MSM, (b) identify specific symptoms related to sexual risk behavior, and (c) compare symptom networks across groups at different levels of risk. Method: Cross-sectional baseline data were collected from 296 HIV-negative urban MSM as part of a multisite randomized intervention trial. Symptoms of depression and PTSD were self-reported along with sexual risk behavior. Analyses were performed in R using regularized partial correlation network modeling. Results: Network analyses revealed complex associations between depression and PTSD symptoms and in relation to sexual risk behavior. While symptoms clustered within their respective disorders, depression and PTSD were connected at key symptom nodes (e.g., sleep, concentration). Specific symptoms (e.g., avoiding thoughts and feelings) were linked to sexual risk behavior. Network comparisons across risk groups suggested avoidant processes could be more readily activated in higher-risk individuals, whereas hyperarousal symptoms may be more salient and protective for lower-risk individuals. Conclusions: This study is one of the earliest network analyses of depression and PTSD, and first to extend this inquiry to health behavior. Symptom-level investigations may clarify mechanisms underlying psychological comorbidity and behavioral risk in MSM and refine targets for intervention/prevention.
Journal of Child & Adolescent Mental Health | 2015
Karmel W. Choi; Melissa H. Watt; Donald Skinner; Seth C. Kalichman; Kathleen J. Sikkema
Objective: This study explored the perceived impact of parental drinking on children in a South African township where alcohol abuse is prevalent and high levels of existing poverty and violence may exacerbate potential consequences on children. Method: Qualitative in-depth interviews were conducted with 92 male and female participants recruited from alcohol-serving venues in Cape Town, South Africa. Results: Grounded theory analyses revealed three major aspects of parental drinking — intoxication, venue attendance and expenditures on alcohol — which participants linked to negative proximal outcomes (e.g., child neglect, abuse and exposure to alcohol culture) and long-term outcomes (e.g., fractured parent–child relationships and problematic youth behaviours). In addition, preliminary accounts from some participants suggested that parents may experience tensions between desires to reduce drinking for child-related reasons and complex factors maintaining their drinking behaviour, including the use of alcohol to cope with stressors and trauma. Conclusions: This study provides novel insights into the consequences and motivations of parental drinking in a high-risk context. Contextual risks (e.g., poverty and violence) that exacerbate the impact of parental drinking on children may be the same factors that continue to shape intergenerational alcohol use in this community. Findings highlight opportunities for further research and interventions to support child protection in South Africa.