Search results

Nowadays, the importance of infant birth weight (IBW) as a key factor in determining the future of physical and mental development of children is a growing concern. The purpose of this paper is to investigate the relationship between maternal characteristics and IBW among pregnant women who were referred to health centers in Qazvin city in the year 2016.

A descriptive-analytical study was conducted among pregnant women in 28–36 weeks of gestation who referred to healthcare centers and facilities affiliated by the Qazvin University of Medical Sciences in April–June 2016. The associations between maternal physical activity, mothers’ socioeconomic status and birth weight were examined by SPSS Software Package version 16 through linear and logistic regression tests.

Linear regression modeling suggested that maternal weight (p=0.001), income (p=0.04), gestational age of delivery (p=0.00) and pre-pregnancy BMI (p=0.02) were positively associated with birth weight, while occupational and heavy physical activity (p=0.003 and 0.008, respectively) were negatively associated with IBW. In this study, low birth weight infants are compared to those with normal weight belonged to mothers who have spent more time in doing heavy physical activities (OR=1.11, 95% CI 1.01–1.23). Also infants with low birth weight compared to others in the normal weight category were born from mothers with lower pre-pregnancy BMI (OR=0.65, 95% CI 0.62–0.78), gestational age of delivery (OR=0.82, 95% CI 0.79–0.86), maternal weight (OR=0.86, 95% CI 0.84–0.88) and income (OR=0.79, 95% CI 0.69–0.83).

The study findings revealed that certain maternal characteristics could play a significant role in IBW. Despite the importance, in most of developing countries (particularly Iran), future mothers are not advised about an appropriate weight gain during pregnancy or the optimal level of physical activity in such a period of time. Therefore, counseling pregnant women and giving them proper information on appropriate perinatal care would be helpful in order to have pregnancies with optimal outcomes.

The authors applied several statistical methods to analyze IBW among mothers with different maternal characteristics and predict birth weight based on contributing factors.

We estimate the parental investment response to the child endowment at birth, by analysing the effect of child birth weight on the hours worked by the mother two years after birth. Mother’s working hours soon after child birth are a measure of investments in their children as a decrease (increase) in hours raises (lowers) her time investment in the child. The child birth endowment is endogenously determined in part by unobserved traits of parents, such as investments during pregnancy. We adopt an instrumental variables estimation. Our instrumental variables are measures of the father’s health endowment at birth, which drive child birth weight through genetic transmission but does not affect directly the mother’s postnatal investments, conditional on maternal and paternal human capital and prenatal investments. We find an inverted U-shape relationship between mothers worked hours and birth weight, suggesting that both low and extremely high child birth weight are associated with child health issues for which mothers compensate by reducing their labour supply. The mother’s compensating response to child birth weight seems slightly attenuated for second and later born children. Our study contributes to the literature on the response of parental investments to child’s health at birth by proposing new and more credible instrumental variables for the child health endowment at birth and allowing for a heterogeneous response of the mother’s investment for first born and later born children.

This paper evaluates the Nutrition Intervention Project (NIP) implemented statewide in the State of Virginia to determine the effectiveness of nutritional intervention in decreasing pre‐term births and low birth weight (LBW) babies to at‐risk pregnant women in urban and rural areas. Sample size was 1,284. Majority of the respondents were white, primiparae, between 20‐29 years of age, and underweight (BMI < 19.8). Twenty‐one per cent of the of the births were pre‐term, and 13.3 per cent were in the LBW category. Regression analysis indicated that number of visits to the nutritionist was positively associated with birth weight and gestational age of the baby. Nutrition intervention (NI) decreased the smoking behaviour and improved the intake of iron supplements, both of which improved the weight gain and pregnancy outcomes. Effects analysis indicated that the causal effect operated both via intervening variables as well as directly between nutritional intervention and pregnancy outcomes. The path from NI to birth outcomes via weight gain was the strongest. Respondents in urban areas had a higher risk of pre‐term births than rural areas.

Canada has recognized that the incidence of low birth‐weight babies poses a significant community‐wide health problem with serious societal and medical implications, both now and in the foreseeable future. The focus of this paper is on the direct relationship between low‐income women and low birth‐weight babies. Low‐income is related to low education levels and other behavioral risk factors associated with low birth‐weight babies. Much research and programming has been undertaken in the last 15 years, and some demonstrable improvements have been made. This paper suggests a community‐based approach to the development of programs that can help to make a difference to this ongoing problem.

This study aims to examine the effect of maternal food intake before and during pregnancy on birth weight.

As a prospective cohort study, a total of 585 pregnant women of first trimester, visiting Tehran Metropolitan Area public health centers and private sectors (clinics and hospitals), were interviewed at first phase, and pregestational dietary intake was obtained by a 168-item semiquantitative food frequency questionnaire. At the third trimester, dietary recalls were collected via interview. Finally, birth weight information was extracted from health records. Univariate and multivariate analysis was used to explore the effect of maternal and nutritional factors on birth weight.

The results of the analysis show that direct measures of nutrition, measured as food group consumption at first and third trimester of pregnancy, had no significant effect on birth weight once the confounding factors were controlled (p > 0.05). Of control variables included in the analysis, twin pregnancy outcome (p = 0.000), pregnancy number (p = 0.04), prepregnancy weight (p = 0.004) (marginally significant) and gestational age (p = 0.000) (marginally significant) were associated with birth weight.

The results of this study show no significant role of mother’s nutrition during pregnancy on birth weight, while long-term nutrition outcomes such as prepregnancy weight had significant role. It seems the main reasons behind less important role of pregnancy nutrition on birth weight in this study include the following: food intake deficiency is not a major problem for participants, and cross-sectional data on food intake are less important on outcome of pregnancy weight than long-term nutritional status outcome variables such as mother’s weight and height. This finding should be addressed in public health planning for women at childbearing age.

Perinatal health is a good indicator of both maternal health status and the level of socioeconomic status attained in any community. This article presents part of the findings of a research project conducted in 1997 by the author to look at the determinants of maternal and perinatal health in Kisumu district of Kenya. Data were collected from four health facilities within the district which were selected through purposive sampling to act as sentinel centres. In total, 1,455 obstetric cases were enumerated and those with perinatal complications were isolated. Perinatal health status was measured by the frequency of low birth weights, neonatal deaths, still‐births, and early neonatal morbidity. Cross‐tabulations and multivariate analysis have been used to identify the major risk factors of the perinatal health problems identified in the study area. Among other things, the study reveals that the risk of most perinatal complications is significantly increased by maternal and environmental factors. These include poor pregnancy care, malaria and anaemia during pregnancy, poor socioeconomic conditions of the mother and poor sanitary conditions in the household. Any policy measure aimed at promoting perinatal health should seek to address all these factors.

This chapter examines birth outcomes of patients enrolled in Familias Sanas (Healthy Families), an educational intervention designed to reduce health disadvantages of low-income, immigrant Latina mothers by providing social support during and after pregnancy.

Using a randomized control-group design, the project recruited 440 pregnant Latina women, 88% of whom were first generation. Birth outcomes were collected through medical charts and analyzed using regression analysis to evaluate if there were any differences between patients enrolled in Familias Sanas compared to those patients who followed a typical prenatal course.

Control and intervention groups were found to be similar with regard to demographic characteristics. In addition, we did not observe a decrease in rate of a number of common pregnancy-related complications. Likewise, rates of operative delivery were similar between the two groups as were fetal weight at delivery and use of regional anesthesia at delivery.

The lack of improvements in birth outcomes for this study was perhaps because this social support intervention was not significant enough to override long-standing stressors such as socioeconomic status, poor nutrition, genetics, and other environmental stressors.

This study was set in an inner-city, urban hospital with a large percentage of patients being of Hispanic descent. The study itself is a randomized controlled clinical trial, and data were collected directly from electronic medical records by physicians.

The nutritional status of a woman before and during pregnancy is important for a healthy pregnancy outcome. The increasing prevalence of maternal overweight and obesity worldwide has become a problem of concern among public health professionals. The purpose of this paper is to review the evidence regarding the impact of maternal weight on pregnancy outcomes to facilitate the provision of evidence-based information to pregnant women during antenatal clinics in Ghana.

A search was conducted in PubMed, PLOS ONE, Cochrane, Embase and bibliographies for all studies on maternal weight and pregnancy outcomes published from January 2000 to May 2013. The key words used for the search were: “pre-pregnancy BMI”, “gestational weight gain”, “maternal weight”, “pregnancy outcomes” and “birth outcomes”.

The search yielded 113 papers; out of these, 35 studies were included in the review after exclusion of duplicates and irrelevant papers. Excluded papers included animal studies and human studies that did not meet inclusion criteria.

The review only considered papers published from 2000 to 2013 and might have left out other important papers published before 2000 and after 2013.

The origins of the studies included in the review suggest paucity of studies on maternal weight and pregnancy outcomes in developing countries where there is a double burden of malnutrition. There is the need for more studies to be initiated in this area.

Results of this review have revealed that the extremes of maternal weight prior to and during pregnancy increase the risk of maternal and fetal complications.

This paper provides evidential information on the impact of maternal weight on pregnancy outcomes for counseling during antenatal clinics.

This paper aims to evaluate the effectiveness of nutrition interventions conducted in pregnant adolescents and their implications for future research.

The papers in this systematic study were searched through PubMed, PMC, the Cochrane Library (Trial), ScienceDirect and Google Scholar that were published from 2000 to 2019. An experimental study using a randomized controlled trial (RCT) or non-RCT among pregnant adolescents aged 10-19 years were inclusion criteria for this study. While exclusion criteria were studies published before 2000, non-experimental study and non-English-language studies.

A total of 14 studies were identified in this review. Six studies provided interventions in the form of nutrition and health education and seven studies provided interventions in the form of nutritional supplementation (calcium, vitamin D, iron-folate, lipid-based nutrient supplements and multi-micronutrient powder. One study provided dietary intervention. The interventions in pregnant adolescents in the form of education and nutritional supplementation effectively increased the knowledge and nutrition of pregnant adolescents and decreased low birth weight (LBW) and premature birth. The impact on birth outcomes was still quite diverse. Some of the studies in this review were conducted without a comparison group, a small sample size and conducted in health-care facilities.

This systematic review implies a future nutrition intervention for pregnant adolescents is needed to improve nutritional status of pregnant adolescents and birth outcome. Future research using double blind RCT method with bigger sample size and various nutritional outcome are wide open to be developed.

Interventions in pregnant adolescents effectively increased the knowledge and nutrition of pregnant adolescents and decreased LBW and premature birth. The program implementation in the community needs to be improved so that the effectiveness of the program remains optimal as in healthcare facilities.

There has been substantial interest in US cesarean rates, which increased from 5% of deliveries in the 1970s to nearly one-third of births by the mid-2000s. Explanations typically emphasize individual risk factors (e.g., advanced maternal age, increased BMI, and greater desire for control over delivery) of women giving birth, or address institutional factors, such as the medicalization of childbirth and the culture of liability leading physicians to practice defensive medicine. We focus here on another non-medical explanation – childbirth education (CBE). CBE is an important, underexplored mechanism that can shape women’s expectations about labor and birth and potentially lead them to expect, or desire, a cesarean delivery as a normalized outcome. We analyze data from three waves (2002, 2006, 2013) of the Listening to Mothers national survey on US women’s childbearing experiences (n = 3,985). Using logistic regression analysis, we examined both mode of delivery (vaginal versus cesarean), and attitudes about future request for elective cesarean among both primiparous and multiparous women. Despite previous research suggesting that CBE increased the likelihood of vaginal delivery, we find that CBE attendance was not associated with likelihood of vaginal delivery among either primiparous or multiparous women. However, both primiparous and multiparous women who attended CBE classes were significantly more likely to say they would request a future, elective cesarean. Furthermore, these effects were in the opposite direction of effects for natural birth attitudes. Our findings suggest that contemporary CBE classes may be a form of “anticipatory socialization”, potentially priming women’s acceptance of medicalized childbirth.