From: Do parental heights influence pregnancy length?: a population-based prospective study, HUNT 2
Preterm delivery (< 37.0) weeks | Post term delivery (>42.0 weeks) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Maternal height (in quintiles) | Cases/non-cases | Crude estimate3 | Adjusted estimate4 | 95% CI | p for trend | Cases/non-cases | Crude estimate3 | Adjusted estimate4 | 95% CI | p for trend |
Estimated date of delivery based on US | ||||||||||
<163 | 25/662 | 1.0 | 1.0 | Ref | 22/665 | 1.0 | 1.0 | Ref | ||
163-165 | 18/575 | 0.8 | 0.8 | 0.4,1.5 | 15/578 | 0.8 | 0.8 | 0.4,1.6 | ||
166-168 | 17/637 | 0.7 | 0.7 | 0.3,1.3 | 36/618 | 1.8 | 1.8 | 1.0,3.1 | ||
169-172 | 18/685 | 0.7 | 0.7 | 0.4,1.3 | 29/674 | 1.3 | 1.4 | 0.8,2.5 | ||
173+ | 12/497 | 0.6 | 0.6 | 0.3,1.4 | 0.18 | 27/482 | 1.7 | 1.9 | 1.0,3.4 | 0.01 |
Estimated date of delivery based on LMP | ||||||||||
<163 | 42/808 | 1.0 | 1.0 | Ref | 87/763 | 1.0 | 1.0 | Ref | ||
163-165 | 19/704 | 0.5 | 0.5 | 0.3,0.9 | 71/652 | 1.0 | 1.0 | 0.7,1.4 | ||
166-168 | 25/783 | 0.6 | 0.6 | 0.3,1.0 | 109/699 | 1.4 | 1.4 | 1.0,1.9 | ||
169-172 | 27/812 | 0.6 | 0.6 | 0.4,1.1 | 94/745 | 1.1 | 1.2 | 0.8,1.6 | ||
173+ | 25/586 | 0.8 | 0.8 | 0.5,1.4 | 0.52 | 76/535 | 1.3 | 1.3 | 0.9,1.9 | 0.06 |