Obesity

Prepregnancy maternal BMI and trajectories of BMI-for-age in children up to four years of age: findings from the 2015 Pelotas (Brazil) birth cohort

Int J Obes (Lond)Published Prospective birth cohort study

Main finding · Belonging to "risk for weight excess" trajectoryResult — go to the resultTimes more risk 2.36 95% CI 1.71–3.24

Authors' conclusion

The risk of weight excess in children up to 4 years of age were greater in mothers who presented prepregnancy weight excess.

Study context

Population
Children of the Pelotas 2015 Birth Cohort (Brazil), BMI-for-age z-scores at 3 months, 1, 2 and 4 years75.3% of original cohort
Participants
3,218 children
Exposure
Prepregnancy maternal weight excess vs underweight/normal weight
Outcome
Membership of BMI-for-age trajectory group "risk for weight excess"
Follow-up
Up to 4 years of age
Methodological detailspopulation-based birth cohort, group-based trajectory modelling, multinomial logistic regression
  • Population-based birth cohort
  • Group-based trajectory modelling
  • Multinomial logistic regression

Main finding

Belonging to "risk for weight excess" trajectory · up to 4 years

Times more risk

2.36

95% CI 1.71–3.24

As reported in the abstract

Observational data: associations, not effects.

Further findings

BMI-for-age trajectories

Children in "risk for weight excess" trajectory
196 (7.1%)
Four trajectories identified: "increasing", "adequate", "stabilized" and "risk for weight excess"

Original publication

Prepregnancy maternal BMI and trajectories of BMI-for-age in children up to four years of age: findings from the 2015 Pelotas (Brazil) birth cohort. Int J Obes (Lond). Published 13 December 2023. doi:10.1038/s41366-023-01422-1

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