Nonbiological maternal risk factor for low birth weight on Latin America: a systematic review of literature with meta-analysis

Abstract

Objective: To identify non-biological maternal risk factors to low birthweight in Latin America. Methods: Systematic review of literaturethrough meta-analysis. The tool for methodological evaluation was theStrengthening the Reporting of Observational Studies in EpidemiologyStatement. Studies in non-pathological maternal risk factors to lowbirthweight and those evaluated by a Strengthening the Reportingof Observational Studies in Epidemiology Statement method under Cgrade were excluded. Results: From seven studies, five pointed outthe influence of maternal age under 20. In four studies maternal ageabove 35 years old was relevant to low birth weight. Other factorswere present in only one or two studies. Conclusion: Accordingto this study the maternal age under 20 and above 35 years old isa relevant factor to low birth weight. There are few studies withuniversal and solid methodology, which difficult a systematic reviewof literature though meta-analysis.

Keywords

• Infant
• low birth weight
• Risk factors
• Maternal age
• Meta-analysis