Table 3 Linear regression models showing associations between breastfeeding and long-term weight retention at 4 to 10Â years postpartum
From: Breastfeeding, socioeconomic status, and long-term postpartum weight retention
|  | Long-term weight retention at 4–10 years postpartum, kg | |||||
|---|---|---|---|---|---|---|
| Â | Unadjusted | Adjusted | ||||
|  | All β (95% CI) | Low SES β (95% CI) | High SES β (95% CI) | All β (95% CI) | Low SES β (95% CI) | High SES β (95% CI) |
Model Set 1: Breastfeeding | ||||||
    Ever Breastfed | -1.29 (-2.50, -0.08) | -0.84 (-2.36, 0.67) | 0.76 (-1.33, 2.86) | -0.85 (-2.04, 0.34) | -0.60 (-2.1, 0.89) | 0.13 (-1.67, 1.92) |
    Breastfeeding Duration, months | -0.06 (-0.12, -0.01) | -0.02 (-0.11, -0.06) | -0.05 (-0.10, 0.01) | -0.03 (-0.09, 0.01) | -0.02 (-0.1, 0.06) | -0.04 (-0.09, 0.01) |
    Breastfed at least 6 months | -1.58 (-2.47, -0.69) | -0.96 (-2.27, 0.34) | -0.72 (-1.77, 0.33) | -1.09 (-1.93, -0.25) | -0.83 (-2.1, 0.44) | -0.85 (-1.79, 0.09) |
Model Set 2: Breastfeeding + Pre-pregnancy BMI | ||||||
    Ever Breastfed | -1.78 (-2.98, -0.58) | -1.07 (-2.58, 0.44) | -0.01 (-1.89, 1.88) | -0.81 (-2.0, 0.38) | -0.55 (-2.04, 0.94) | 0.12 (-1.68, 1.92) |
    Breastfeeding Duration, months | -0.08 (-0.13, -0.03) | -0.03 (-0.11, 0.04) | -0.06 (-0.11, 0.01) | -0.03 (-0.09, 0.02) | -0.02 (-0.1, 0.06) | -0.04 (-0.09, 0.01) |
    Breastfed at least 6 months | -1.97 (-2.83, -1.10) | -1.15 (-2.43, 0.12) | -1.17 (-2.15, -0.19) | -1.08 (-1.92, -0.24) | -0.82 (-2.08, 0.45) | -0.85 (-1.79, 0.09) |
Model Set 3: Breastfeeding + Pre-pregnancy BMI + GWG (z-score) | ||||||
    Ever Breastfed | -1.81 (-3.00, -0.63) | -1.00 (-2.47, 0.46) | -0.06 (-1.97, 1.85) | -0.79 (-1.98, 0.4) | -0.54 (-2.04, 0.95) | 0.15 (-1.65, 1.96) |
    Breastfeeding Duration, months | -0.08 (-0.13, -0.03) | -0.04 (-0.12, 0.04) | -0.05 (-0.11, -0.003) | -0.03 (-0.09, 0.02) | -0.01 (-0.09, 0.06) | -0.04 (-0.09, 0.01) |
    Breastfed at least 6 months | -1.96 (-2.82, -1.11) | -1.2 (-2.45, 0.04) | -1.06 (-2.05, -0.07) | -1.06 (-1.9, -0.22) | -0.80 (-2.1, 0.46) | -0.85 (-1.79, 0.09) |