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Table 3 Associations between breastfeeding with duration ≤ 6 months and childhood obesity in sub-populations stratified by maternal age when born and gender of household reference person

From: Beneficial effects of short-term breastfeeding versus non-breastfeeding in early life against childhood obesity: findings from the US-based population study NHANES

Breastfed

Maternal age when born

HRP genderη

< 35 years old

≥ 35 years old

Male

Female

Never

Reference

Reference

Reference

Reference

Ever

1.09 (0.83, 1.44)

0.31 (0.17, 0.59)

1.08 (0.70, 1.68)

0.72 (0.50, 1.05)

≤ 3 months

1.10 (0.82, 1.49)

0.44 (0.22, 0.91)

0.91 (0.56, 1.50)

0.79 (0.53, 1.18)

> 3 ~ 6 months

1.08 (0.78, 1.52)

0.15 (0.07, 0.33)

1.38 (0.86, 2.22)

0.61 (0.40, 0.94)

P-trend

0.564

< 0.001

0.264

0.034

  1. ηHRP gender, gender of household reference person; This table presents the results of subgroup analyses using multivariate logistic regression models to examine the association between short-term breastfeeding and childhood obesity. Data from the NHANES 2009–2016 cycles were used for analyses stratified by household reference person (HRP) gender due to missing data in the 2017-March 2020 pre-pandemic cycle
  2. Two breastfeeding classification schemes were employed in the regression models. The first model categorized breastfeeding as “Never” (reference group) and “Ever” (any duration of breastfeeding). The second model further categorized breastfeeding as “Never” (reference group), “Breastfed ≤ 3 months”, and “Breastfed > 3 ~ 6 months”
  3. Data are presented as odds ratios and 95% confidence intervals