Incidence and determinants of low birth weight in Peninsular Malaysia: A multicentre prospective cohort study

BACKGROUND AND OBJECTIVE

Pregnant mothers are at risk of many adverse pregnancy outcomes, including infants with low birth weight (LBW). The World Health Organization aimed to achieve a 30% reduction in the number of LBW infants by the year 2025. In this study, we aimed to determine the incidence and determinants of LBW infants among pregnant mothers attending government health clinics in Peninsular Malaysia.

MATERIAL AND METHODS

A prospective cohort study "Relative Risk of Determinants of Adverse Pregnancy Outcomes Among Pregnant Mothers Attending Government Health Clinics, Peninsular Malaysia, PEN-MUM" was conducted from March 2022 until March 2023 at 20 government health clinics in Peninsular Malaysia that were randomly selected through a multistage sampling method. Malaysian pregnant mothers between 18 and 49 years old were recruited at 12-18 weeks of gestation and followed up at three time points: 1 (24-28 weeks of gestation), 2 (36-40 weeks of gestation), and 3 (post-delivery). Eight exposure factors of LBW were studied: gestational weight gain, dengue infection, urinary tract infection, COVID-19 infection, gestational hypertension, preeclampsia, maternal anemia, and gestational diabetes mellitus (GDM).

RESULTS

Among 507 participants enrolled in the cohort, 40 were lost to follow-up. A total of 467 were included in the final analysis, giving an attrition rate of 7.9%. The incidence of LBW infants in Peninsular Malaysia was 14.3%. After adjusting for three covariates (ethnicity, employment status, and gestational age at birth), three determinants of LBW were identified. The risk of giving birth to LBW infants was higher among those with inadequate gestational weight gain (aRR = 2.86, 95% CI: 1.12, 7.37, p = 0.03), gestational hypertension (aRR = 4.12; 95% CI: 1.66, 10.43; p = 0.002), and GDM (aRR = 2.21; 95% CI: 1.18, 4.14; p = 0.013) during the second and third trimesters.

CONCLUSIONS

The incidence of LBW infants in Peninsular Malaysia can be considered high. Having inadequate gestational weight gain, gestational hypertension, and GDM in the second and third trimesters increased the risk of LBW infants by threefold, fivefold, and twofold respectively. Thus, intervention strategies should target prevention, early detection, and treatment of gestational hypertension and GDM, as well as promoting adequate weight gain during antenatal care.

Determinants of adverse birth outcome in the west shewa zone, Oromia, regional state, Ethiopia: Unmatched case-control study

INTRODUCTION

Adverse birth outcome (ABO) can lead to higher rates of poor health and infection for newborns, as well as long-term neurological and health problems. Hence, the aim is to identify determinants of ABOs among mothers who gave birth in hospitals in West Shewa zone, Ethiopia.

METHODS

A hospital-based, unmatched, case-control study was conducted from March 5to July 29, 2020, among 591mothers (171 cases and 420 controls) who had given birth in hospitals found in West Shewa zone. The questionnaire was collected using census and survey processing system (CS-Pro) version7.1.The data were entered into Epi-data version 3.1 and analyzed by SPSS software version 23. Descriptive statistics, bivariate analysis, and multivariate logistic regression analysis were performed. Finally, P-value < 0.05 was used to declare and include variables with statistically significant in predicting the outcome variable.

RESULT

On multivariate analysis, urban residence(AOR=0.65, 95%, CI=0.43-0.98),lack of family support during child bearing(AOR =5.24, 95% CI=3.16-8.71),pregnancy type(AOR = 4.02, 95% CI: 2.47-6.52,),short inter-pregnancy interval (AOR = 1.43,95% CI= 1.23-4.48),less than four antenatal care (ANC) visits (AOR =1.80,95%CI: 1.17- 2.78),and having current obstetric complication (AOR=2.07, 95% CI =1.18-3.61) were significantly associated with adverse birth outcomes.

CONCLUSIONS

Residence, lack of family support during childbearing, pregnancy type, short inter-pregnancy interval, having current obstetric complications, and number of ANC visits were identified as determinants of adverse birth outcome. Therefore, improving family support, increasing inter-pregnancy interval through family planning counselling and provision, and having the recommended ANC follow-up were recommended.

Adverse fetal outcomes and its associated factors in Ethiopia: a systematic review and meta-analysis

BACKGROUND

Despite the reduction of neonatal morbidity and mortality, is one of the third Sustainable Development Goal to end the death of children, the burden of the problem still the major challenge in Ethiopia. Globally, the most common causes of neonatal morbidity and mortality are adverse fetal outcomes (low birth weight, stillbirth, prematurity, congenital defect). Therefore this systematic review and meta-analysis aimed to estimate the pooled prevalence of adverse fetal outcomes and its associated factors in Ethiopia.

METHOD

International databases (PubMed, Google scholar, web of science and science direct) were searched. Seventeen articles were included, among these, fourteen were cross-sectional and three of them were case-control studies. Publication bias was employed using a funnel plot and eggers test. The I2 statistic was computed to check the heterogeneity of studies. Subgroup analysis was performed for the evidence of heterogeneity.

RESULT

A total of 11,280 study participants were used to estimate the pooled prevalence of adverse fetal outcomes. The overall pooled prevalence of adverse fetal outcomes in Ethiopia was 26.88% (95% CI; 20.73-33.04). Low birth weight 10.06% (95% CI; 7.21-12.91) and prematurity 8.76% (95% CI; 5.4-12.11) were the most common adverse birth outcome at the national level. Rural in residency (AOR = 2.31; 95% CI: 1.64-3.24), lack of antenatal care follow up (AOR = 3.84; 95% CI: 2.76-5.35), pregnancy-induced hypertension (AOR = 7.27; 95% CI: 3.95-13.39), advanced maternal age ≥ 35(AOR = 2.72; 95% CI: 1.62-4.58, and having current complication of pregnancy (AOR = 4.98; 95% CI: 2.24-11.07) were the factors associated with adverse birth outcome.

CONCLUSION

The pooled prevalence of adverse fetal outcomes in Ethiopia was high. Rural in residency, lack of antenatal care follow up, pregnancy-induced hypertension, advanced maternal age ≥ 35, and having current complications of pregnancy were the factors associated with adverse fetal outcomes.

PROSPERO PROTOCOL REGISTRATION

CRD42020149163.