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Artigos Originais
Vol. 24 No. 4 (2024), Artigos Originais
Vol. 24 No. 4 (2024)

Association between breastfeeding and intelligence quotient in adolescents from the São Luís Birth Cohort, 1997/1998

Published 2024-04-30
Kezia Cristina Batista dos Santos
Liliana Yanet Gomez Aristizabal
Antônio Augusto Moura da Silva
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Keywords

Breast Feeding
Intelligence
Adolescent

How to Cite

Association between breastfeeding and intelligence quotient in adolescents from the São Luís Birth Cohort, 1997/1998. (2024). Electronic Journal Collection Health, 24(4), e14856. https://doi.org/10.25248/reas.e14856.2024
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Abstract

Objective: To investigate the association between breastfeeding and the intelligence quotient (IQ) of adolescents belonging to the São Luís Birth Cohort from 1997-1998. Methods: This is a longitudinal study, carried out in 2016, with 301 adolescents aged 18 and 19. The exposure variable was breastfeeding and the outcome variable was IQ, measured in points, based on the Wechsler Adult Intelligence Scale. Multiple linear regressions were performed to obtain adjusted coefficients in the R 4.3.1 software. Results: The adolescents' average IQ was 99.7 points ± 11.2. The average breastfeeding time in months was 3.26 months ± 3.34. In the crude analysis, no statistically significant association was identified between breastfeeding and adolescents' IQ. The result was maintained even after adjusting for confounding factors for those breastfed for up to one month (1.55; CI% -3.25;6.63), two to three months (0.55; CI95% -4.99;6 .11), four to six months (2.89; 95%CI -2.36;8.14) and more than six months (-1.97; 95%CI -8.37;4.42), ever breastfed (1.42; 95%CI -3.33;6.19) and exclusive breastfeeding (0.70; 95%CI -2.46;3.88). Conclusion: The results of the study showed that breastfeeding is not associated with the IQ of adolescents in this sample.

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