Table 3.
Variables | Overall sample | Underweight/Normal weight | Overweight/obese | P for interaction | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
n | Unadjusted | Adjusteda | Adjustedb | Adjustedb | ||||||||
β (95% CI) | P-value | β (95% CI) | P-value | n | β (95% CI) | P-value | n | β (95% CI) | P-value | |||
Physical activity | 0.032 | 0.056 | 0.570 | 0.109 | 0.607 | |||||||
Insufficiently active | 325 | Reference | Reference | 202 | Reference | 123 | Reference | |||||
Sufficiently active | 436 | −0.13 (−0.35, 0.08) | 0.222 | −0.16 (−0.37, 0.04) | 0.116 | 284 | −0.07 (−0.31, 0.17) | 0.576 | 152 | −0.28 (−0.66, 0.10) | 0.152 | |
Highly active | 160 | −0.38 (−0.67, −0.10) | 0.009 | −0.32 (−0.59, −0.05) | 0.020 | 99 | −0.17 (−0.49, 0.15) | 0.291 | 61 | −0.51 (−1.00, −0.01) | 0.044 | |
p for trend | 0.010 | 0.016 | 0.295 | 0.036 | ||||||||
Total sitting time | 0.091 | 0.172 | 0.082 | 0.885 | 0.547 | |||||||
Low (<7 h/day) | 251 | Reference | Reference | 153 | Reference | 98 | Reference | |||||
Medium (7–10 h/day) | 265 | 0.25 (−0.01, 0.52) | 0.056 | 0.23 (−0.02, 0.47) | 0.073 | 160 | 0.31 (0.02, 0.60) | 0.037 | 105 | 0.10 (−0.34, 0.55) | 0.652 | |
High (≥10 h/day) | 417 | 0.24 (0.001, 0.48) | 0.049 | 0.17 (−0.06, 0.40) | 0.137 | 277 | 0.25 (−0.01, 0.52) | 0.062 | 140 | 0.02 (−0.41, 0.45) | 0.931 | |
p for trend | 0.069 | 0.189 | 0.099 | 0.971 | ||||||||
Television time | 0.284 | 0.649 | 0.925 | 0.571 | ||||||||
Low (<3 h/day) | 640 | Reference | Reference | 411 | Reference | 229 | Reference | 0.363 | ||||
High (≥3 h/day) | 294 | −0.11 (−0.32, 0.10) | 0.05 (−0.15, 0.25) | 180 | −0.01 (−0.25, 0.23) | 114 | 0.11 (−0.26, 0.47) |
β beta-coefficient, CI confidence interval, BMI body mass index
AaAdjusted for maternal age, ethnicity, education, pre-pregnancy BMI, parity at recruitment, history of GDM in previous pregnancy, family history of diabetes, dietary energy intake, active/passive smoking during pregnancy and pregnancy weight gain at 26–28 gestational visit
bbAdjusted for maternal age, ethnicity, education, parity at recruitment, history of GDM in previous pregnancy, family history of diabetes, dietary energy intake, active/passive smoking during pregnancy and pregnancy weight gain at 26–28 gestational visit
p-values were determined by multivariable linear regression