Amina P. Alio

Extreme Obesity and Risk of Stillbirth Among Black and White Gravidas

OBJECTIVE: To estimate the risk for stillbirth among three generally accepted obesity subtypes based on severity. METHODS: We used the Missouri maternally linked cohort data containing births from 1978 to 1997. Using prepregnancy weight and height, mothers were classified on the basis of calculated body mass index (BMI) above 30 into three subsets: class I (30–34.9), class II (35–39.9), and extreme obesity (greater than or equal to 40). Using normal-weight, white women (18.5–24.9) as a reference, we applied Cox proportional hazard regression models to estimate risks for stillbirth. RESULTS: The prevalence of obesity in pregnant women was 9.5% (12.8% among blacks and 8.9% among whites). Overall, obese mothers were about 40% more likely to experience stillbirth compared with nonobese gravidas (adjusted hazard ratio 1.4; 95% confidence interval [CI] 1.3–1.5). The risk for stillbirth increased in a dose-dependent fashion with increase in BMI: class I (adjusted hazard ratio 1.3; 95% CI 1.2–1.4); class II (adjusted hazard ratio 1.4; 95% CI 1.3–1.6) and extreme obesity (adjusted hazard ratio 1.9; 95% CI 1.6–2.1; P for trend <.01). Obese black mothers experienced more stillbirths than their white counterparts (adjusted hazard ratio 1.9; 95% CI 1.7–2.1 compared with adjusted hazard ratio 1.4; 95% CI 1.3–1.5). The black disadvantage in stillbirth widened with increase in BMI, with the greatest difference observed among extremely obese black mothers (adjusted hazard ratio 2.3; 95% CI 1.8–2.9). CONCLUSION: Obesity is a risk factor for stillbirth, particularly among extremely obese, black mothers. Strategies to reduce black–white disparities in birth outcomes should consider targeting obese, black women. LEVEL OF EVIDENCE: II

Super-obesity and risk for early and late pre-eclampsia

Please cite this paper as: Mbah A, Kornosky J, Kristensen S, August E, Alio A, Marty P, Belogolovkin V, Bruder K, Salihu H. Super‐obesity and risk for early and late pre‐eclampsia. BJOG 2010;117:997–1004.

Spousal violence and potentially preventable single and recurrent spontaneous fetal loss in an African setting: cross-sectional study

BACKGROUND Spousal violence is a global issue, with ramifications for the reproductive health of women. We aimed to investigate the effect of physical, sexual, and emotional violence on potentially preventable single and recurrent spontaneous fetal loss. METHODS We analysed data from the Cameroon Demographic Health Survey. In the violence module of this survey, women were questioned about their experience of physical, emotional, and sexual violence inflicted by their spouses. Respondents were also asked about any stillbirths and spontaneous abortions. We measured risk for single and recurrent fetal loss with odds ratios, with adjustment for intracluster correlations as appropriate. We also estimated the proportion of preventable excess fetal loss at various levels of violence reduction. FINDINGS 2562 women responded to the violence module. Those exposed to spousal violence (n=1307) were 50% more likely to experience at least one episode of fetal loss compared with women not exposed to abuse (odds ratio 1.5; 95% CI 1.3-1.8). Recurrent fetal mortality was associated with all forms of spousal violence, but emotional violence had the strongest association (1.7; 1.2-2.3). If the prevalence of spousal abuse could be reduced to 50%, 25%, or entirely eliminated, preventable excess recurrent fetal demise would be 17%, 25%, and 33%, respectively. INTERPRETATION Spousal violence increases the likelihood of single and repeated fetal loss. A large proportion of risk for recurrent fetal mortality is attributable to spousal violence and, therefore, is potentially preventable. Our findings support the idea of routine prenatal screening for spousal violence in the African setting, a region with the highest rate of fetal death in the world.

Obesity: What is an elderly population growing into?

OBJECTIVES Obesity is currently a major public health concern; however, there is little data available on the prevalence and impact of obesity within the elderly population. This review examines the prevalence and health effects of obesity among individuals aged > or =50. METHODS PubMed (1996-2008) and PsychInfo (2002-2008) search engines were used to retrieve qualified peer-reviewed articles focusing on obesity or a health condition correlated with obesity using BMI or other weight index as a defining variable; and studies limited to the elderly (age 60+) or pre-elderly (50+). RESULTS Worldwide, the elderly population is increasingly becoming obese regardless of socio-economic status. Among elderly persons, obesity increases the risks for a variety of morbidity conditions including cancers, diabetes, hypertension, stroke, heart disease, metabolic syndrome, obstructive sleep apnea syndrome, osteoarthritis, depression, disability, and lower scores on quality of life measures. In some reports, obesity has been linked to Alzheimers disease and other forms of cognitive decline. Obesity significantly increases healthcare costs and nursing homes are currently ill equipped to address the needs of the rising number of obese residents. CONCLUSIONS Obesity is increasing in the elderly population worldwide and is expected to continue to rise. Obesity is associated with disease and disability in addition to escalating healthcare costs, and hospitals and nursing homes are ill equipped to serve the obese elderly. It is imperative that research efforts and funding be devoted to studying the effects and the reduction of obesity in the elderly population.

Feto-infant Health and Survival: Does Paternal Involvement Matter?

Lack of paternal involvement during pregnancy and infancy may account for a significant burden of the adverse pregnancy outcomes among black women and could therefore, represent an important avenue providing the opportunity to improve feto-infant health and survival. This study aimed to review the literature on paternal involvement during the perinatal period and its influence on feto-infant health and survival. Literature for this review was identified by searching the PubMed database from the National Center for Biotechnology Information at the US National Library of Medicine as well as the ISI Web of Knowledge Databases, OVID, and CINAHL. A total of seven papers were identified and included in this review. There is paucity of data in this domain. Overall findings suggest that paternal involvement during pregnancy may have important implications for maternal prenatal health behaviors and feto-infant health. Although results are limited, results suggest that paternal involvement has a positive influence on prenatal care usage, abstinence from alcohol and smoking, and a reduction in low birth weight and small for gestational age infants. None of the papers examined the relationship between stillbirth and paternal involvement. Additional studies with enhanced measures of paternal involvement are needed to better assess the role of fathers in enhancing prenatal health behaviors and pregnancy outcomes. Efforts should be made to include fathers in future studies and reduce reliance on maternal report and to investigate paternal roles across different racial groups so that appropriate interventions can be developed.

Intimate partner violence and contraception use among women in Sub-Saharan Africa

To determine the association between contraceptive use and intimate partner violence (IPV) in Sub‐Saharan African women.

Obesity Subtypes and Risk of Spontaneous versus Medically Indicated Preterm Births in Singletons and Twins

Using data from the Missouri maternally linked files (1989-1997), the authors examined the association among maternal obesity, obesity subtypes, and spontaneous and medically indicated preterm (<37 weeks) and very preterm (<33 weeks) births in singletons and twins. Adjusted odds ratios were obtained with correction for intracluster correlation. The prevalence of obesity increased by 77% over the study period (p(trend) < 0.001). Obese mothers had a lower risk for spontaneous preterm birth, and this was more pronounced among twins (odds ratio = 0.68, 95% confidence interval: 0.62, 0.75) than singletons (odds ratio = 0.84, 95% confidence interval: 0.82, 0.87). However, this association was present only among obese women who gained less than 0.69 kg/week for singletons and between 0.23 and 0.69 kg/week for twins. By contrast, obese mothers with singleton gestation had about 50% greater odds of medically indicated preterm (odds ratio = 1.46, 95% confidence interval: 1.39, 1.54) and very preterm (odds ratio = 1.49, 95% confidence interval: 1.34, 1.65) births, and the risk increases with ascending severity of obesity (p(trend) < 0.01). For extreme obesity, the risk of medically indicated preterm and very preterm births was almost double that for nonobese women. Similar findings were observed in twins. These data suggest that obesity increases the risk for medically indicated but not spontaneous preterm birth in both singletons and twins.

Alcohol consumption during pregnancy and the risk of early stillbirth among singletons

The purpose of this study is to investigate the association between maternal alcohol intake in pregnancy and the occurrence of early stillbirth using a retrospective cohort analysis of singleton births in Missouri that occurred in the period 1989 through 1997 (N=655,979). We used Cox proportional hazards regression to generate adjusted risk estimates for total, early, and late stillbirth associated with maternal alcohol intake and used the Robust Sandwich Estimator to adjust for intracluster correlations among sibships. Overall, a total of 3,508 counts of stillbirth were identified, yielding a stillbirth rate of 5.3 per 1,000. Among mothers who consumed alcohol during pregnancy, the stillbirth rate was 8.3 per 1,000. Mothers who consumed alcohol while pregnant were 40% more likely to experience stillbirth as compared with nondrinking mothers (adjusted hazards ratio=1.4, 95% confidence interval: 1.2-1.7). A dose-response relationship was evident; mothers who consumed five or more drinks per week during pregnancy experienced a 70% elevated risk of stillbirth compared with nondrinking mothers (adjusted hazards ratio=1.7; 95% confidence interval: 1.0-3.0). The risk of early stillbirth was 80% higher among drinking mothers compared with abstainers (adjusted hazards ratio=1.8; 95% confidence interval: 1.3-2.3). The elevated risks for both early and late stillbirth did not reach statistical significance when broken down by level of alcohol intake. In conclusion, maternal drinking during pregnancy is associated with an increased risk of early stillbirth. These findings underscore the need to reinforce current counseling strategies toward pregnant women and women who intend to conceive on the detrimental effects of alcohol use in pregnancy.

A community perspective on the role of fathers during pregnancy: a qualitative study

BackgroundDefining male involvement during pregnancy is essential for the development of future research and appropriate interventions to optimize services aiming to improve birth outcomes. Study Aim: To define male involvement during pregnancy and obtain community-based recommendations for interventions to improve male involvement during pregnancy.MethodsWe conducted focus groups with mothers and fathers from the National Healthy Start Association program in order to obtain detailed descriptions of male involvement activities, benefits, barriers, and proposed solutions for increasing male involvement during pregnancy. The majority of participants were African American parents.ResultsThe involved “male” was identified as either the biological father, or, the current male partner of the pregnant woman. Both men and women described the ideal, involved father or male partner as present, accessible, available, understanding, willing to learn about the pregnancy process and eager to provide emotional, physical and financial support to the woman carrying the child. Women emphasized a sense of “togetherness” during the pregnancy. Suggestions included creating male-targeted prenatal programs, enhancing current interventions targeting females, and increasing healthcare providers’ awareness of the importance of men’s involvement during pregnancy.ConclusionsIndividual, family, community, societal and policy factors play a role in barring or diminishing the involvement of fathers during pregnancy. Future research and interventions should target these factors and their interaction in order to increase fathers’ involvement and thereby improve pregnancy outcomes.

Prenatal Tobacco Use and Risk of Stillbirth: A Case—Control and Bidirectional Case—Crossover Study

We sought to estimate the association between prenatal smoking and stillbirth in a longitudinal cohort using two study designs: a case-control study and a bidirectional case-crossover study. The analysis was conducted using the Missouri maternally linked cohort dataset from 1978 through 1997. In the case-control study, each mother contributed only one birth to the analysis. For the bidirectional crossover design, analysis was restricted to women who gave birth to at least one stillbirth, and the controls comprised all live births before and after the stillbirth. The independent association between prenatal smoking and stillbirth was computed using nonconditional (case-control design) and conditional (bidirectional case-crossover design) logistic regression. Prenatal smoking decreased from 29.7% in 1978 to 21.2% by 1997 (p<.001). The absolute risk of stillbirth was greater among smokers (7.7/1000) than nonsmokers (5.3/1000), p<.001. In the case-control design, the risk of stillbirth was 34% greater among smokers than nonsmokers (OR = 1.34, 95% CI 1.26-1.43). For each 10-unit increase in the number of cigarettes consumed per day prenatally, the likelihood of stillbirth rose by about 14% (p<.001). In the bidirectional case-crossover design, the association between stillbirth and smoking during pregnancy was confirmed, although the magnitude of the relationship was smaller (OR = 1.20, 95% CI 1.03-1.39). In conclusion, we found prenatal smoking to be a risk factor for stillbirth even after minimizing the influence of known and unknown sources of confounding as well as changes in temporal trend in prenatal smoking.