M. Williams

Publications534
h-index77
Citations20,014
Highly Influential Citations931
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Validity of the patient health questionnaire-9 for depression screening and diagnosis in East Africa
Depression is often underdiagnosed and undertreated in primary care settings, particularly in developing countries. This is, in part, due to challenges resulting from lack of skilled mental health… Expand
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Maternal Plasma 25-Hydroxyvitamin D Concentrations and the Risk for Gestational Diabetes Mellitus
Background Evidence is accumulating for a role of vitamin D in maintaining normal glucose homeostasis. However, studies that prospectively examined circulating concentrations of 25-hydroxyvitamin D… Expand
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Prospective study of gestational diabetes mellitus risk in relation to maternal recreational physical activity before and during pregnancy.
Physical activity has been associated with a reduced risk of gestational diabetes mellitus, but inferences have been hampered by recall and selection bias. The authors examined the relation between… Expand
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Sleep quality and its psychological correlates among university students in Ethiopia: a cross-sectional study
BackgroundSleep is an important physiological process for humans. University students in most resource limited countries often report poor sleep quality due to changing social opportunities and… Expand
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Epidemiology of maternal depression, risk factors, and child outcomes in low-income and middle-income countries.
Maternal depression, a non-psychotic depressive episode of mild to major severity, is one of the major contributors of pregnancy-related morbidity and mortality. Maternal depression (antepartum or… Expand
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Correlates of recreational physical activity in early pregnancy
Objective: Despite the well-documented benefits of a physically active lifestyle, over 25% of American adults report that they never engage in regular recreational physical activity. Little is known… Expand
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A case-control study of maternal recreational physical activity and risk of gestational diabetes mellitus.
Despite the maternal and infant morbidity associated with gestational diabetes mellitus (GDM), few modifiable risk factors have been identified. We explored the relation between recreational physical… Expand
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Recreational Physical Activity During Pregnancy and Risk of Preeclampsia
Abstract— The potential benefits and risks of physical activity before and during pregnancy are not well studied. We studied the relation between recreational physical activity and the risk of… Expand
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Perinatal Factors and Risk of Breast Cancer
A high level of endogenous estrogen in utero has been hypothesized to he a possible risk factor for breast cancer. We used information from two population-hosed case-control studies to investigate… Expand
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Pre-pregnancy Body Mass Index, Gestational Weight Gain, and Other Maternal Characteristics in Relation to Infant Birth Weight
Objectives Infant birth weight is influenced by modifiable maternal pre-pregnancy behaviors and characteristics. We evaluated the relationship among pre-pregnancy body mass index (BMI), gestational… Expand
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