Risk factors for low birth weight in Nepali infants

Maternal risk factors associated with term low birth weight in India: A review

Low birth weight is one of the leading factors for infant morbidity and mortality. To a large extent affect, various maternal risk factors are associated with pregnancy outcomes by increasing odds of delivering an infant with low birth weight. Despite this association, understanding the maternal risk factors affecting term low birth weight has been a challenging task. To date, limited studies have been conducted in India that exert independent magnitude of these effects on term low birth weight. The aim of this review is to examine the current knowledge of maternal risk factors that contribute to term low birth weight in the Indian population. In order to identify the potentially relevant articles, an extensive literature search was conducted using PubMed, Goggle Scholar and IndMed databases (1993 – Dec 2020). Our results indi­cate that maternal age, educational status, socio-economic status, ethnicity, parity, pre-pregnancy weight, maternal stature, maternal body mass index, obstetric history, maternal anaemia, gestational weight gain, short pregnancy outcome, hypertension during pregnancy, infection, antepartum haemorrhage, tobacco consumption, maternal occupation, maternal psychological stress, alcohol consumption, antenatal care and mid-upper arm circumference have all independent effects on term low birth weight in the Indian pop­ulation. Further, we argue that exploration for various other dimensions of maternal factors and underlying pathways can be useful for a better understanding of how it exerts independent association on term low birth weight in the Indian sub-continent.

Pattern and determinants of birth weight in Oman

OBJECTIVES

The aim of this study was to analyse the pattern of birth weight (BW) and identify the factors affecting BW and the risk factors of low birth weight (LBW) in Oman.

STUDY DESIGN

The data for the study came from the 2000 Oman National Health Survey conducted by the Ministry of Health. The survey covered a nationally representative sample of 2037 ever married Omani women of reproductive age.

METHODS

Data on birth weight were gathered from health cards of the infants born within five years before the survey date. The study considered 977 singleton live births for whom data on birth weights were available. LBW was defined as BW less than 2500 g. Descriptive statistics, analysis of variance, multivariate linear regression and logistic regression models were used for data analysis.

RESULTS

The mean BW was found to be 3.09 (SD 0.51) kg. BW was found to be significantly lower among the infants with the following characteristics: born in Ad-Dhakhliyah region, born in rural areas, and whose mothers had low economic status, low parity (0-2), and late initiation of antenatal care (ANC) visit. The incidence of LBW was found to be 9% in Oman in 2000. Mother's education, economic status, region of residence, late initiation of first ANC visit and experience of pregnancy complications appeared as the significant determinants of LBW in Oman. In contrast to most other studies, this study demonstrates that mothers with an advanced level of education (secondary and above) are more likely to have infants with LBW in Oman.

CONCLUSION

The study findings highlight the need of intervention for specific groups of women with higher risk of adverse BW outcomes.

Low-birth-weight babies among hospital deliveries in Nepal: a hospital-based study

BACKGROUND

Birth weight is an important indicator of a population's health and is associated with numerous interrelated factors in the infant, mother, and physical environment. The objective of this study was to assess the proportion of low birth weight and identify the associated factors for low birth weight in a liveborn infant among the women in Morang, Nepal.

METHODS

A cross-sectional survey was carried out from December 2010 to March 2011 among 255 mothers who gave birth during the study period at the Koshi Zonal Hospital, Nepal. Data were collected using a structured questionnaire with face-to-face interviews. Data were analyzed through logistic regression and presented with crude and adjusted odds ratios (AORs) with 95% confidence intervals (CIs).

RESULTS

The study showed that the prevalence of low-birth-weight babies was 23.1% (95% CI: 17.9-28.1). The mean (standard deviation) age of mothers was 23.23 (4.18) years. The proportion of low birth weight of previous baby was 3.9% (95% CI: 0.1-7.9), and 15.7% (95% CI: 11.5-20.5) of the respondents had preterm delivery. Nearly one-third (36.1%; 95% CI: 26.4-45.6) of the respondents had >2 years' gap after the previous delivery. Nonformal employment (AOR: 2.14; 95% CI: 0.523-8.74), vegetarian diet (AOR: 1.47; 95% CI: 0.23-9.36), and no rest during pregnancy (AOR: 1.38; 95% CI: 0.41-4.39) were factors more likely to determine low birth weight. However, none of the variables showed a significant association between low birth weight and other dependent variables.

CONCLUSION

Low birth weight is an important factor for perinatal morbidity and mortality and is a common problem in the developing world. The proportion of low-birth-weight babies was high in hospital delivery, and ethnicities, Hindu religion, education, nonformal employment, food habit, rest during pregnancy, and type of delivery were found to influence the birth weight. Hence, it is important to strengthen health education services at the basic level of a community to solve this problem.

Impact of maternal age on preterm delivery and low birthweight: a hospital-based collaborative study of nulliparous Lebanese women in Greater Beirut

OBJECTIVES

To analyze the impact of maternal age at first childbirth on the incidence of preterm delivery and low birthweight among single live births delivered to nulliparous Lebanese women in Greater Beirut.

STUDY DESIGN

Eligible subjects were selected from a consecutive sample of neonatal admissions to nine National Collaborative Perinatal Network participating hospitals over a three-year period (April 1, 1999 to March 31, 2002). Chi-square tests and logistic regression analyses were applied.

RESULTS

Out of 5556 nulliparous mothers, 5.4% had a preterm delivery and 5.2% a low-birthweight infant. In the multivariate analysis, preterm delivery was not significantly affected by old maternal age. Mothers aged 25 years or more remained a high-risk group for low birthweight even after controlling for potentially confounding characteristics.

CONCLUSIONS

Maternal age at first childbirth above 25 years is an independent risk factor for low birthweight, but not for preterm delivery, an outcome influenced mainly by obstetric complications.