Association between breast feeding and self reported adult stature, Boyd Orr cohort, UK
| Mean (SD) | Mean difference (95% CI) (breast fed minus bottle fed) | ||||
|---|---|---|---|---|---|
| Variable | No in subset with complete data | Breast fed | Bottle fed | Adjusted for age* and clustering at the family level | Also adjusted for socioeconomic factors† and survey district |
| Mean differences (natural units) were calculated using random effects regression modelling. | |||||
| *Age entered in these models as a categorical variable (quintiles). | |||||
| †Socioeconomic factors adjusted for were social class, number of children, birth order, and income category (all entered as categorical variables). | |||||
| Males | |||||
| Height (cm) | 439 | 173.42 (6.98) | 171.17 (7.85) | 2.38 (0.81 to 3.94) | 2.49 (0.94 to 4.03) |
| p=0.003 | p=0.002 | ||||
| Trunk length (cm) | 360 | 97.09 (5.15) | 96.20 (4.91) | 0.91 (−0.31 to 2.13) | 0.98 (−0.27 to 2.14) |
| p=0.15 | p=0.11 | ||||
| Leg length (cm) | 368 | 76.31 (4.97) | 75.47 (4.63) | 1.06 (−0.10 to 2.23) | 1.25 (0.09 to 2.40) |
| p=0.074 | p=0.034 | ||||
| Body mass index | 431 | 27.20 (5.24) | 26.62 (5.19) | 0.55 (−0.55 to 1.65) | 0.60 (−0.52 to 1.71) |
| p=0.33 | p=0.29 | ||||
| Females | |||||
| Height (cm) | 502 | 160.38 (6.38) | 159.55 (6.59) | 0.95 (−0.38 to 2.27) | 1.01 (−0.27 to 2.29) |
| p=0.16 | p=0.12 | ||||
| Trunk length (cm) | 328 | 89.68 (4.99) | 89.93 (4.68) | −0.38 (−1.65 to 0.89) | −0.64 (−1.91 to 0.62) |
| p=0.56 | p=0.32 | ||||
| Leg length (cm) | 335 | 70.81 (4.95) | 69.85 (5.41) | 1.24 (−0.04 to 2.51) | 1.17 (−0.08 to 2.42) |
| p=0.057 | p=0.067 | ||||
| Body mass index | 483 | 27.71 (6.83) | 28.00 (7.61) | −0.08 (−1.51 to 1.36) | −0.28 (−1.70 to 1.15) |
| p=0.92 | p=0.70 | ||||