Table 8

Odds ratio (OR) for preterm delivery and post- term delivery by paternal height1
Preterm delivery (< 37.0) weeks Post term delivery (>42.0 weeks)
Paternal height (in quintiles) Cases/non-cases Crude estimate2 Adjusted estimate3 95% CI p for trend Cases/non- cases Crude estimate2 Adjusted estimate3 95% CI p for trend
Estimated date of delivery based on US
≤ 175 24/479 1.0 1.0 Ref 27/477 1.0 1.0 Ref
176-178 26/371 1.4 1.5 0.8,2.8 29/368 1.4 1.3 0.7,2.3
179-181 24/388 1.2 1.4 0.7,2.6 22/390 1.0 0.9 0.5,1.7
182-185 18/430 0.8 1.0 0.5,2.1 32/416 1.4 1.2 0.7,2.1
≥186 21/378 1.1 1.4 0.7,2.6 0.16 23/376 1.1 0.9 0.5,1.7 0.70
Estimated date of delivery based on LMP
≤ 175 33/609 1.0 1.0 Ref 87/555 1.0 1.0 Ref
176-178 23/473 0.9 0.9 0.5,1.8 66/430 1.0 1.0 0.7,1.4
179-181 27/487 1.0 1.1 0.7,2.0 54/460 0.8 0.7 0.5,1.1
182-185 27/525 0.9 1.1 0.7,2.1 67/485 0.9 0.8 0.6,1.2
≥186 28/484 1.1 1.2 0.8,2.2 0.24 55/357 0.8 0.7 0.5,1.1 0.11

1Pregnancy length according to date of delivery estimated by ultrasound (US) (2159 pregnancies) and by first day of last menstrual period (LMP) (2716 pregnancies). 2Adjusted for paternal age at HUNT 2 participation. 3Additionally adjusted for maternal height, maternal age at birth, duration between baseline ( HUNT 2 participation) and delivery, maternal education, parity, smoking, receiving social security benefits or not, pre-pregnancy maternal hypertension, diabetes mellitus, kidney and heart disease, BMI, systolic and diastolic blood pressure, blood concentration of glucose and lipids.

Myklestad et al.

Myklestad et al. BMC Pregnancy and Childbirth 2013 13:33   doi:10.1186/1471-2393-13-33

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