Inmigración y factores asociados con la lactancia materna. Estudio CALINA / Immigration and factors associated with breastfeeding. CALINA study

OBJETIVO: Identificar las características socioculturales, obstétricas y perinatales asociadas con la lactancia materna completa (LMC) durante 4 meses, en dependencia del origen materno. MATERIAL Y MÉTODOS: Estudio de una cohorte representativa de la población de lactantes aragoneses (n = 1.452). Se han evaluado las variables socioculturales, obstétricas y perinatológicas asociadas a la modalidad de lactancia materna, en dependencia del origen de la madre. RESULTADOS: La prevalencia de LMC en nuestro medio es más alta en las madres inmigrantes que en las de origen español. El 37,2% de las de origen español mantienen la LMC a los 4 meses frente al 43% de las inmigrantes (p = 0,039) (RR españolas/inmigrantes=0,76; IC del 95%, 0,58-0,99); a los 6 meses, esto ocurre en un 13,9% vs. 23,8%, respectivamente (p < 0,001) (RR españolas/inmigrantes=0,52; IC del 95%, 0,37-0,72). Los factores que se asocian a la LMC a los 4 meses son diferentes entre ambos grupos. Las madres de origen español tienen más edad (p = 0,002), nivel educativo (p = 0,001), paridad (p = 0,003) y mayor probabilidad de parto vaginal (p = 0,005), y sus hijos presentan mayores valores antropométricos al nacimiento. Sin embargo, en las madres inmigrantes, el mantenimiento de LMC se asocia a un mayor índice de masa corporal materno y a no trabajar fuera del domicilio. En ambos grupos, la LMC se mantiene con más frecuencia en aquellas madres que no fuman (p = 0,001). CONCLUSIONES: La prevalencia de LMC durante los primeros meses de edad es más alta en las madres inmigrantes que en las madres de origen español y los factores socioculturales, obstétricos y perinatales que se asocian a la misma son distintos en función del origen materno

OBJECTIVE: To identify socio-cultural, obstetric and perinatal characteristics associated with complete breastfeeding (CBF) during the first 4 months of age, depending on maternal origin. MATERIAL AND METHODS: Socio-cultural, obstetric and perinatal aspects associated with breastfeeding depending on maternal origin were evaluated in a longitudinal study in a representative infant population from Aragon (n = 1452). RESULTS: The prevalence of CBF was higher in immigrant mothers than in those from Spain. CBF was maintained in 37.2% of mothers from Spain at 4 months, compared with 43% of immigrants (P=0.039) (RR Spanish/immigrants=0.76; 95% CI: 0.58-0.99); at 6 months this occurred in 13.9% vs. 23.8%, respectively (P<0.001) (RR Spanish/immigrants=0.52; 95% CI: 0.37-0.72). The factors associated with CBF at 4 months are different between both groups. Mothers born in Spain are older (P=0.002), have higher academic level (P=0.001), greater parity (P=0.003), and a higher probability of vaginal delivery (P=0.005); and their children have the highest anthropometric values at birth. However, in immigrant mothers, the maintenance of CBF was associated with a higher maternal body mass index and with working at home. In both groups, CBF remains more frequently in those mothers who do not smoke (P=0.001). CONCLUSIONS: The prevalence of CBF during the first months of life is higher in immigrant mothers than in those from Spain, and socio-cultural, obstetric and perinatal factors are different, depending on maternal origin

[Immigration and factors associated with breastfeeding. CALINA study]. / Inmigración y factores asociados con la lactancia materna. Estudio CALINA.

OBJECTIVE: To identify socio-cultural, obstetric and perinatal characteristics associated with complete breastfeeding (CBF) during the first 4 months of age, depending on maternal origin. MATERIAL AND METHODS: Socio-cultural, obstetric and perinatal aspects associated with breastfeeding depending on maternal origin were evaluated in a longitudinal study in a representative infant population from Aragon (n = 1452). RESULTS: The prevalence of CBF was higher in immigrant mothers than in those from Spain. CBF was maintained in 37.2% of mothers from Spain at 4 months, compared with 43% of immigrants (P=.039) (RR Spanish/immigrants=0.76; 95% CI: 0.58-0.99); at 6 months this occurred in 13.9% vs. 23.8%, respectively (P<.001) (RR Spanish/immigrants=0.52; 95% CI: 0.37-0.72). The factors associated with CBF at 4 months are different between both groups. Mothers born in Spain are older (P=.002), have higher academic level (P=.001), greater parity (P=.003), and a higher probability of vaginal delivery (P=.005); and their children have the highest anthropometric values at birth. However, in immigrant mothers, the maintenance of CBF was associated with a higher maternal body mass index and with working at home. In both groups, CBF remains more frequently in those mothers who do not smoke (P=.001). CONCLUSIONS: The prevalence of CBF during the first months of life is higher in immigrant mothers than in those from Spain, and socio-cultural, obstetric and perinatal factors are different, depending on maternal origin.