Table 1 Demographic and clinical characteristics of study subjects (n = 503)
From: Sex differences in body composition affect total airway resistance during puberty
Male (n = 261, 51.9%) | Female (n = 242, 48.1%) | |
|---|---|---|
Anthropometrics | ||
Age, years, mean (SD) | 11.03 (0.70) | 11.05 (1.03) |
Height, cm, mean (SD) | 149.61 (7.99) | 149.53 (7.48) |
Weight, kg, mean (SD) | 43.11 (9.57) | 42.47 (8.77) |
Birth characteristics | ||
Gestational age, weeks (SD) | 38.77 (2.15) | 38.98 (2.06) |
Birth weight, kg, mean (SD) | 3.30 (0.43) | 3.16 (0.43) |
Passive smoking, n (%) | 100 (43.5) | 103 (45.4) |
Aeroallergen sensitizationa, n (%) | 168 (73.0) | 131 (57.7) |
Wheeze episodes, n (%) | ||
None | 225 (86.2) | 219 (90.9) |
1 or over | 36 (13.8) | 22 (9.1) |
25-OH vitamin D, ng/mL, GM (GSD) | 22.16 (1.28) | 19.15 (1.33) |
Total IgE, IU/mL, GM (GSD) | 118.30 (3.53) | 94.91 (3.60) |
Oscillometric lung function, median (IQR) | ||
Rrs5, hPa/L/s | 4.99 (4.42 to 5.77) | 4.79 (4.21 to 5.46) |
Body composition | ||
BMI z score, mean (SD) | − 0.08 (1.04) | 0.04 (1.05) |
Muscle fat ratio, median (IQR) | 3.54 (2.44 to 5.53) | 2.93 (2.16 to 3.91) |
Pubertal status, n (%) | ||
Early pubertal stageb | 200 (87.3) | 91 (38.9) |
Late pubertal stageb | 29 (12.7) | 143 (61.1) |
Testosterone, ng/mL, median (IQR) | 0.70 (0.12 to 2.49) | 0.19 (0.12 to 0.27) |