Table 2 Unadjusted and adjusted odd ratios (95%CI) for HBW by maternal habitual midday napping duration.

From: Maternal Habitual Midday Napping Duration and Frequency are Associated with High Birthweight

Habitual midday napping duration

Number

Case

ORa(95%CI)

ORb(95%CI)

Never

1,777

80(4.5%)

1.00 (reference)

1.00 (reference)

<1.5 hour

2,604

157(6.0%)

1.36(1.03, 1.79)

1.28(0.96, 1.71)

1.5–2 hours

2,887

187(6.5%)

1.47(1.13, 1.92)

1.50(1.14, 1.98)

≥2 hours

3,214

190(5.9%)

1.33(1.02, 1.74)

1.35(1.03, 1.78)

  1. aUnadjusted odds ratio.
  2. bAdjusted for maternal age, infant sex, gestational age, pre-pregnancy BMI, yearly household income, parity, education, GDM and passive smoking.
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