Malawi Longitudinal Study Of Families Research Articles

Prevalence and early-life predictors of adverse childhood experiences: Longitudinal insights from a low-income country

BackgroundA sizeable literature shows that adverse childhood experiences (ACEs) are associated with poor health outcomes in later life. However, most studies on the prevalence and predictors of ACEs have been carried out in high-income countries using cross-sectional approaches. ObjectiveThe present study explores the prevalence and predictors of ACEs in Malawi, a low-income country, using prospective longitudinal data collected on adolescents. ParticipantsWe use data on 1375 adolescents and their biological mothers from the Malawi Longitudinal Study of Families and Health (MLSFH). ACEs were reported by adolescents over two survey waves, in 2017–18 and 2021. Predictors were reported by mothers in 2008 and 2010. MethodsMultivariate ordinary least square and logistic regression analyses of ACEs exposure reported by adolescents on indicators of family arrangements and resources. ResultsAdolescents report having been exposed to nearly seven ACEs on average. Among indicators of family arrangements and resources, the only significant predictors of cumulative ACEs exposure are polygyny (linked to parental absence) and mother's SF-12 mental health score (linked to physical abuse and witnessing domestic violence). ConclusionsACEs are much more prevalent in the low-income country under study than in middle- and high-income countries surveyed in prior research. Despite adversity being widespread, most indicators of family arrangements and resources highlighted in prior studies are not associated with adolescents' cumulative ACEs exposure in this context. Mothers' mental health in childhood nevertheless emerges as a significant predictor of adolescents' self-reported ACEs. These findings inform efforts aimed at preventing ACEs in high-adversity contexts.

Cohort profile: the Adverse Childhood Experiences cohort of the Malawi Longitudinal Study of Families and Health

PurposeThe Adverse Childhood Experiences (ACE) cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-ACE) is a study of adolescents surveyed during 2017–2021. It provides an important opportunity to...

Resilience, Accelerated Aging and Persistently Poor Health: Diverse Trajectories of Health in Malawi.

Individuals age at vastly different rates resulting in significant within-population heterogeneity in health and aging outcomes. This diversity in health and aging trajectories has rarely been investigated among low-income aging populations that have experienced substantial hardships throughout their lifecourses. Utilizing 2006-2018 data from the Malawi Longitudinal Study of Families and Health (MLSFH) and estimating group-based trajectory models (GBTM), our analyses identified three distinct lifecourse health trajectories: (1) comparatively good initial mental and physical health that persisted throughout the lifecourse ("resilient aging"); (2) relatively good initial mental and physical health that started to deteriorate during mid-adulthood ("accelerated aging"); and (3) poor initial mental and physical health that further declined over the lifecourse ("aging with persistently poor health"). For both physical and mental health, men were more likely to enjoy resilient aging than women. Predictors other than gender of trajectory membership sometimes confirmed, and sometimes contradicted, hypotheses derived from high-income country studies. Our analyses highlight the long arm of early life conditions and gender in determining aging trajectories and show that a non-trivial sub-population is characterized by aging with persistently poor health. The study uncovers widening gaps in health outcomes between those who age with resilience and those who experience accelerated aging.

Cognition and Cognitive Changes in a Low-Income Sub-Saharan African Aging Population.

Cognition and its age-related changes remain vastly understudied in low-income countries (LICs), despite evidence suggesting that cognitive decline among aging low-income populations is a rapidly increasing disease burden often occurring at younger ages as compared to high-income countries (HICs). We examine patterns of cognition among men and women, 45 + years old, living in rural Malawi. We analyze how key socioeconomic characteristics predict levels of cognition and its changes as individuals get older. Utilizing the Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-MAC) collected during 2012-2017, we estimate standard regression models to analyze predictors of the age- and sex-specific levels and longitudinal changes in cognition. Cognition is assessed with a screening instrument that is adapted to this low-literacy context and measures different domains such as language, attention, or executive functioning. Women have lower levels of cognition than men, a pattern in stark contrast to findings in HICs. Schooling and socioeconomic status increase the probability of having consistently high performance during the cognitive assessment. Cognitive decline accelerates with age and is detectable already at mid-adult ages (45-55 years). Despite lower levels of cognitive function observed among women, the pace of decline with age is similar for both genders. Women are particularly affected by poor cognition in this context. The study emphasizes the importance of prioritizing cognitive health and research on cognition among older individuals in sub-Saharan Africa LICs, to which relatively little health care resources continue to be allocated.

Remarriage timing and its associated factors among women in rural Malawi

ABSTRACT This study examines the timing of and factors associated with remarriages in rural Malawi after the first marital dissolution. Data come from the Malawi Longitudinal Study of Families and Health conducted between 1998 and 2010. Results show that remarriages in rural Malawi are quick and virtually universal, especially among divorced and young women. The median time-to-remarriage after the first marital dissolution is two years for all women combined and divorced women in particular, and only one year for women aged 15–24. Cox proportional hazard models reveal that longer duration of previous union, marital unions that occurred in the latter half of the year 2000 and widowhood are all associated with lower remarriage hazards, whereas Muslim women and women resident in matrilineal societies have higher remarriage hazards than their respective counterparts. Overall, results highlight the importance of previous marriage characteristics above other individual factors in explaining factors associated with remarriages.

Longitudinal consistency of self-reports of adverse childhood experiences among adolescents in a low-income setting

A sizeable literature documents the associations between adverse childhood experiences (ACEs) and poor health in later life. By and large, ACEs are measured using retrospective self-reports. Little is known about the longitudinal consistency of these self-reports in panel data with multiple measurements. This is especially true in adolescence, as most studies using ACEs self-reports have been conducted among adults. Furthermore, very few studies have explored the consistency of ACEs self-reports in low- and middle-income countries, where the reported prevalence of ACEs tends to be higher than in high-income countries. Addressing these gaps, the current study examines the consistency of ACEs self-reports among a cohort of adolescents (N = 1,878, age 10 to 16 at survey baseline) in rural Malawi. We use data from two waves of the ACE project of the Malawi Longitudinal Study of Families and Health carried out in 2017-18 and 2021. In addition to the high prevalence of self-reported ACEs among adolescents in our sample, we document very low consistency of self-reports over time (average Kappa coefficient of 0.11). This low consistency is attributable not only to adolescents reporting more ACEs over time, which could be due to new exposures, but also to adolescents reporting fewer ACEs over time. Analyses of survey vignettes indicate that individual and sociocultural perceptions of abuse do not explain this low consistency. We find that external events (such as changes in socioeconomic status and negative economic shocks) and internal psychological states (such as depression and post-traumatic stress disorder) both predict inconsistencies in ACEs self-reports. Compared with results from prior studies, our findings indicate that the longitudinal consistency of ACEs self-reports may be lower in adolescence than in adulthood. Taken together, these findings suggest that ACEs self-reports provided by adults may be biased by key processes unfolding in adolescence.

A marginal structural model for estimation of the effect of HIV positivity awareness on risky sexual behavior

In this paper, a Marginal Structural Model (MSM) with inverse probability of treatment weights was used to estimate the causal effect of HIV positivity awareness on condom use and multiple sexual partners using data from the Malawi Longitudinal Study of Families and Health (MLSFH). Cumulative awareness of HIV positivity was measured as the number of times an individual was aware of their positive HIV status. Awareness of HIV positivity was associated with increased condom use (OR=2.22, 95%: (1.79, 2.75)). Only among women was it associated with multiple sexual partners (OR=1.76, 95%: (1.36, 2.28)). The use of MSM (over standard regression models for repeated measures) should be encouraged as it is more suited for assessing the cumulative treatment effects while controlling for time-varying confounders in longitudinal studies. There is a need to up-scale interventions that promote HIV testing, awareness of HIV status, and prevention of HIV transmission.

Aging and hypertension among the global poor-Panel data evidence from Malawi.

Hypertension is a rapidly growing disease burden among older persons in low-income countries (LICs) that is often inadequately diagnosed and treated. Yet, most LIC research on hypertension is based on cross-sectional data that does not allow inferences about the onset or persistence of hypertension, its correlates, and changes in hypertension as individuals become older. The Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-MAC) is used to provide among the first panel analyses of hypertension for older individuals in a sub-Saharan LIC using blood pressure measurements obtained in 2013 and 2017. We find that high blood pressure is very common among mature adults aged 45+, and hypertension is more prevalent among older as compared to middle-aged respondents. Yet, in panel analyses for 2013-17, we find no increase in the prevalence of hypertension as individuals become older. Hypertension often persists over time, and the onset of hypertension is predicted by factors such as being overweight/obese, or being in poor physical health. Otherwise, however, hypertension has few socioeconomic predictors. There is also no gender differences in the level, onset or persistence in hypertension. While hypertension is associated with several negative health or socioeconomic consequences in longitudinal analyses, cascade-of-care analyses document significant gaps in the diagnosis and treatment of hypertension. Overall, our findings indicate that hypertension and related high cardiovascular risks are widespread, persistent, and often not diagnosed or treated in this rural sub-Saharan population of older individuals. Prevalence, onset and persistence of hypertension are common across all subgroups-including, importantly, both women and men. While age is an important predictor of hypertension risk, even in middle ages 45-55 years, hypertension is already widespread. Hypertension among adults aged 45+ in Malawi is thus more similar to a "generalized epidemic" than in high-income countries where cardiovascular risk has strong socioeconomic gradients.

Mental health and life-course shocks in a low-income country: Evidence from Malawi

Economic insecurity has been widely hypothesized to be an important determinant of mental health, but this relationship has not been well-documented in low-income countries. Using data from the Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-MAC), we investigate the association of negative economic shocks with mental health outcomes such as depression and anxiety among adults aged 45+ years living in a low-income country. Using fixed effects estimates that control for time-invariant unobserved individual heterogeneity, we find that increased economic instability caused by events such as death of a family member, yield loss, or income loss is positively associated with worse mental health outcomes as measured by the PHQ-9 and GAD-7 instruments. Our results suggest that costly economic events are a key component to worsening mental health in settings characterized by pervasive poverty and underscore the importance of mental health as a public health and development target.

Curtailing Covid-19 on a dollar-a-day in Malawi: Role of community leadership for shaping public health and economic responses to the pandemic.

Utilizing population-based data from the Covid-19 phone survey () of the Malawi Longitudinal Study of Families and Health (MLSFH) collected during June 2nd–August 17th, 2020, we focus on the crucial role that community leadership and trust in institutions played in shaping behavioral, economic and social responses to Covid-19 in this low-income sub-Saharan African context. We argue that the effective response of Malawi to limit the spread of the virus was facilitated by the engagement of local leadership to mobilize communities to adapt and adhere to Covid-19 prevention strategies. Using linear and ordered probit models and controlling for time fixed effects, we show that village heads (VHs) played pivotal role in shaping individuals’ knowledge about the pandemic and the adoption of preventive health behaviors and were crucial for mitigating the negative economic and health consequences of the pandemic. We further show that trust in institutions is of particular importance in shaping individuals’ behavior during the pandemic, and these findings highlight the pivotal role of community leadership in fostering better compliance and adoption of public health measures essential to contain the virus. Overall, our findings point to distinctive patterns of pandemic response in a low-income sub-Saharan African rural population that emphasized local leadership as mediators of public health messages and policies. These lessons from the first pandemic wave remain relevant as in many low-income countries behavioral responses to Covid-19 will remain the primary prevention strategy for a foreseeable future.

Marital dissolutions and changes in mental health: Evidence from rural Malawi.

Advancing efforts to unpack the complex relationship between marital dissolutions and health outcomes increasingly requires assessing the marital histories and health of individuals who have lived long enough to experience divorce or widowhood ‒ or even multiples of each ‒ and measurable changes in health. To explore this line of inquiry, we chose a sample from rural Malawi where a high prevalence of marital dissolutions and remarrying exists, as an ideal theoretical foil to the predominant literature found in high-income countries (HICs). We examine if changes in having experienced a marital dissolution, one's total number of dissolutions, and the percentage of one's life spent outside of marriage since first becoming married are associated with changes in mental health. Our analyses focus on 1,266 respondents aged 45 years and older who participated in the 2012 Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-MAC), linked back to cohort information from 2008 and 2010 available through the MLSFH. Fixed-effects regressions guide our inferences over the 2008, 2010, and 2012 waves of data. For men, spending more life outside of marriage is associated with worse mental health, while more marital dissolutions are surprisingly associated with better mental health for women. These results could suggest that larger portions of one's life spent unmarried are associated with a type of role strain for men or simply that men are burdened with taking up tasks that their spouses had previously done in order to survive. For women, many may have gotten out of 'bad' marriages that otherwise would have been detrimental to their mental health and/or those in good mental health are the ones able to remarry. Our research from rural Malawi provides a type of litmus test for many HICs where marriage, remarriage, and dissolution rates are lower but quite consequential for mental health outcomes. Measuring time outside of marriage should be more strongly considered in such settings. These results also inform increasingly important research on the relationship between marital dissolutions and mental health in other African nations as noncommunicable diseases play a continually more important role in people's lives.

A longitudinal multilevel analysis of the evermigrated population subjective HIV infection expectation in Malawi

Objective The primary purpose of this study is to assess the variance in the effects of factors influencing ever migrated Malawian population’s subjective HIV infection expectation. Design Using data from the Malawi Longitudinal Study of Families and Health (MLSFH) survey (1998-2010), 7805 ever migrated Malawian adults were selected for the study. Summary statistics, logistic regression and longitudinal multi-level models were fitted for the study. A binary logistic regression was used to estimate the direction and magnitude of the associations between the variables selected for the study Five multilevel models with random intercepts and coefficients nominal response were fitted. Results The study revealed that sexual behaviours had the most significant effect on ever migrated Malawian’s subjective HIV infection expectation. All metrics showed that the conditional growth model had the most signficant outcome. The addition of time and other variables as predictors had a significant effect on the conditional growth model. Conclusion Interventions designed to decrease the spread of HIV should target sexual behaviours and widespread testing among the ever migrated population to reduce subjective HIV infection thoughts.

Cohort profile: the mature adults cohort of the Malawi longitudinal study of families and health (MLSFH-MAC)

PurposeThe Mature Adults Cohort of the Malawi Longitudinal Study of Families and Health (MLSFH-MAC) contributes to global ageing studies by providing a rare opportunity to study the processes of individual...

The Psychological Benefits of Marriage and Children in Rural Malawi.

Despite an extensive literature on the psychological rewards of marriage and children in high-income countries, research on these relationships in low-income countries remains limited. This paper draws on data from 4,133 adult women and men interviewed in the Malawi Longitudinal Study of Families and Health to examine how marital status, categorized as never, formerly, monogamously, and polygynously married, and number of children are associated with psychological well-being. With respect to marital status, we find that women in polygynous unions fare worse than monogamously married women and this detrimental effect is stronger for women than for men. Formerly married men and women of reproductive age experience the worst psychological outcomes, although this association wanes with age. In contrast, the benefits of having children is only evident among older Malawian women. These findings offer novel insights into the patterns of nearly universal marriage and high fertility that characterize Malawi and much of sub-Saharan Africa.

The Longitudinal Dynamics of Household Composition and Wealth in Rural Malawi

Household living arrangements play a crucial role in survival efforts throughout sub-Saharan Africa. Household living arrangements foster the development of informal insurance that can mitigate economic or filial shocks, and potentially improve the overall well-being of kin. However, scholarship in sub-Saharan African settings has not been able to, or has not attempted, to track how households have changed and the coinciding changes in livelihood outcomes. We ask whether changes in overall household size and the addition of dependents and working-age individuals are associated with changes in household wealth, a signal of well-being. We use the Malawi Longitudinal Study of Families and Health (MLSFH) to exploit detailed data on changing Malawian household composition via a household roster matching technique and fixed effects regressions. The addition of members to a household and the presence of more boys and working-age men—to a certain point—are associated with having more durable goods and greater chances of acquiring a metal roof—key indicators of wealth in rural Malawi. The addition of girls and women of any age are seemingly not linked to changes in household wealth.

Migration and health at older age in rural Malawi

ABSTRACTThe connection between migration and health has long been established, but relatively little is known about this relationship for older persons, particularly in sub-Saharan Africa (SSA). In this paper, we examine migration selection with regards to health status among older individuals in Malawi, by testing whether older migrants differ from non-migrants in health status before migration. To do so, we use data from the Malawi Longitudinal Study of Families and Health, a longitudinal panel dataset that includes a relatively large number of individuals at older ages. We focus on three measures: mental health, physical health, and HIV status. We find that the relationship between migration and health selection differs by gender. Older women who are HIV-positive are nearly 10 times more likely to migrate compared to their HIV-negative counterparts. For men, those with better mental health are less likely to migrate in the future. These results suggest that, although research in some settings shows that migrants have better health before moving, some older migrants have worse health than their non-migrant peers, and may, therefore, add to the already-heavy burden on rural health centres in Africa.

Cognition, Health, and Well-Being in a Rural Sub-Saharan African Population

Cognitive health is an important dimension of well-being in older ages, but few studies have investigated the demography of cognitive health in sub-Saharan Africa's (SSA) growing population of mature adults (= persons age 45+). We use data from the Malawi Longitudinal Study of Families and Health (MLSFH) to document the age and gender patterns of cognitive health, the contextual and life-course correlates of poor cognitive health, and the understudied linkages between cognitive and physical/mental well-being. Surprisingly, the age-pattern of decline in cognitive health is broadly similar to that observed in the U.S. We also find that women have substantially worse cognitive health than men, and experience a steeper age-gradient in cognitive ability. Strong social ties and exposure to socially complex environments are associated with higher cognitive health, as is higher socioeconomic status. Poor cognitive health is associated with adverse social and economic well-being outcomes such as less nutrition intake, lower income, and reduced work efforts even in this subsistence agriculture context. Lower levels of cognitive health are also strongly associated with increased levels of depression and anxiety, and are associated with worse physical health measured through both self-reports and physical performance. Our findings suggest that cognition plays a key-but understudied-role in shaping late-life well-being in low-income populations.

Why rely on friends instead of family? The role of exchanges and civic engagement in a rural sub-Saharan African context

ABSTRACTSocial science research has shown there is a nearly universal norm of seeking assistance from family members in times of need. However, when do individuals prefer to rely on friends, rather than family members, when they need support? This question has not been carefully addressed. To fill this gap in the literature we examine why rural Malawians – who typically have strong bonds with kin – might prefer to rely on friends instead of family if a crisis were to occur. Using the 2008 and 2010 waves of the Malawi Longitudinal Study of Families and Health (MLSFH), we consider how financial and non-financial exchanges with kin, and civic engagement, are associated with the composition of individuals’ support networks. We find the decision to request a friend’s help during a crisis is consistently associated with participation in civic-oriented activities, expanding our understanding of the determinants of different risk-pooling strategies.

Acceptance of Intimate Partner Violence in Rural Malawi: An Empirical Analysis on the Impacts of Lineage and AIDS Conversation Networks

Acceptance of intimate partner violence (IPV) is both a barrier to its reduction and a strong predictor of prevalence. This study examines whether lineage and AIDS conversation networks impact acceptance of IPV among men and women in rural Malawi. The sample consists of 4,422 male and female respondents from the 2001, 2004, and 2006 waves of the Malawi Longitudinal Study of Families and Health (MLSFH). The longitudinal nature of the data enables us to use not only random effects models in the empirical analysis, but also fixed effects models, which help alleviate omitted variable bias. Our findings suggest that in the patrilineal Northern Region of Malawi, AIDS conversation networks may be conducive toward reducing acceptance of IPV. However, AIDS conversation networks may reinforce violent norms in the Central Region of Malawi as men with larger AIDS conversation networks are more accepting of IPV. These findings imply there may be an opportunity to incorporate network-based policies to reduce IPV, and lineage may be an important consideration in forming policies to alleviate IPV. In addition, we find a relatively strong age-acceptance gradient, with younger, never-married individuals being less accepting of IPV than older, married individuals. This finding may help inform intervention targeting as older, married women in Malawi may be at a higher risk of IPV.

Living Arrangements and Health at Older Ages in Rural Malawi.

Sub-Saharan Africa's older population is projected to nearly double in size by 2030. At the same time, demographic changes have caused major shifts in the units primarily responsible for the care of older adults: the family and household. The purpose of this paper is to examine the relationship between household composition and health at older ages in rural Malawi. We use data from the Malawi Longitudinal Study of Families and Health (MLSFH), which contains detailed information on household and family structure, along with measures of mental and physical health (from the Short Form-12). We focus on several measures of living arrangements that are expected to be associated with health: overall household size, sex composition, and kin structure (based on co-residence with offspring and grandchildren). Results show that: (1) older women who co-reside with offspring have better mental and physical health compared to those living only with grandchildren; (2) older men who live in larger households or in households with a higher proportion of females have better physical health.