Table 1 Descriptive statistics for continuous variables
Time pointVariable (normally distributed)Men (n = 169)nWomen (n = 223)n
RangeMean (SD)RangeMean (SD)
FetalBirth weight* (z score)−2.7–2.2−0.3 (0.9)169−3.2–3.00.0 (1.1)223
AdulthoodBody fat (%)15.4–54.436.3 (7.2)16814.4–61.841.7 (9.1)219
GeneralHeight (cm)151.4–189.7173.3 (6.5)168147.1–176.1161.4 (6.0)221
Time pointVariable (not normally distributed)RangeMedian (IQR)nRangeMedian (IQR)n
ChildhoodTotal colds between ages 0 and 50–133 (2–5)1680–123 (1–5)222
Total URTIs between ages 0 and 50–111 (0–3)1680–102 (1–3)222
Total LRTIs between ages 0 and 50–100 (0–1)1680–80 (0–1)222
AdulthoodCigarette smoking history (pack-years)†0.1–73.022.6 (8.3–33.5)1100.1–40.517.2 (5.7–26.0)120
OutcomeFEV1 (l)1.6–5.63.6 (3.2–3.9)1691.4–4.72.6 (2.3–2.9)223
  • *Adjusted for sex and gestational age.13

  • †Excluding 56 men and 103 women who had never smoked.

  • FEV1, forced expiratory volume in 1 s; LRTIs, lower respiratory tract infections; URTIs, upper respiratory tract infections, excluding colds.