Sociodemographic determinants associated with breastfeeding in term infants with low birth weight in Latin American countries

Table 1 Main characteristics of the included studies

Ref.	Location	Study design	Type of Sampling	Sample size LWB	Control group	Measurements	Analysis
Lizarazo et al[2], 2023	Colombia	Observational	Convenience	25	No	Investigator-designed survey. Medical records	Descriptive analysis
Ortelan et al[18], 2020	Brazil	Observational	Probabilistic	2370	No	Questionnaire on sociodemographic characteristics of mothers and breast milk consumption. BF prevalence survey	Poisson regression
Agudelo et al[23], 2021	Colombia	Clinical trial	Probabilistic	297	Yes	Infant BF assessment tool	Cox proportional hazards analysis. Cox regression models
Montoya et al[24], 2020	Colombia	Observational	Convenience	52	Yes	Investigator-designed survey. Medical records	Descriptive analysis
Charpak and Montealegre-Pomar[25], 2023	Colombia	Observational	Convenience	57.154	Yes	Griffiths test. INFANIB test	Bivariate analysis
Sequeiros et al[26], 2023	Peru	Observational	Convenience	489	No	Demographic and family health survey. Household questionnaire. Individual woman questionnaire. Health questionnaire	Bivariate and multivariate analysis
Ortiz Romaní and Loayza Alarico[20], 2023	Peru	Observational	Convenience	531	No	National database	Binary logistic regression
Wormald et al[19], 2021	Chile	Observational	Convenience	118	No	State trait anxiety inventory. Beck depression inventory; BDI-I. BF self-efficacy scale for mothers with hospitalized preterm infants	Multinomial logistic regression
Javela Rugeles et al[21], 2019	Colombia	Observational	Convenience	90	No	Medical records	Descriptive analysis
Mangialavori et al[22], 2022	Argentina	Observational	Probabilistic	1044	No	Investigator-designed survey. Medical records	Descriptive analysis
Ortelan et al[17], 2019	Brazil	Observational	Probabilistic	2112	Yes	Medical records	Multilevel Poisson regression models

LBW: Low birth weight; INFANIB: Infant neurological international battery; BDI-I: Beck depression inventory-I; BF: Breastfeeding.