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Table 3 The protective effect of the duration of high-intensity breastfeeding against the development of abnormal glucose tolerance during the first year (up to 14 months) postpartum

From: The effect of high-intensity breastfeeding on postpartum glucose tolerance in women with recent gestational diabetes

High- intensity breastfeeding groups

Crude OR

95% CI

P value

Model Id

Model IIe

Adjusted OR

95% CI

P value

Adjusted OR

95% CI

P value

Group 1a

0.29

0.057, 1.27

0.10

0.20

0.032, 1.06

0.057

0.25

0.036, 1.44

0.12

Group 2b

0.22

0.046, 0.93

0.040

0.20

0.033, 0.98

0.048

0.15

0.022, 0.89

0.036

Group 3c

0.23

0.058, 0.78

0.017

0.16

0.032, 0.64

0.008

0.15

0.029, 0.63

0.0084

  1. The reference of OR was the abnormal glucose tolerance prevalence in non-high-intensity breastfeeding women
  2. OR odds ratio, CI confidence interval, BMI body mass index, OGTT oral glucose tolerance test
  3. aGroup 1: women who met the high-intensity breastfeeding definition only for 6-8 weeks and not at 6 months postpartum (n = 14)
  4. bGroup 2: women with high-intensity breastfeeding at 6 months but not at 12 months postpartum (n = 16)
  5. cGroup 3: women still engaging in high-intensity breastfeeding at 12 months postpartum (n = 40)
  6. dAdjusted for prepregnancy BMI and 2-h plasma glucose at the diagnostic OGTT during pregnancy
  7. eAdjusted for age, prepregnancy BMI, family history of diabetes, 2-h plasma glucose at diagnostic OGTT during pregnancy, diagnostic criteria, weight gain during pregnancy and weight change during postpartum