Table 1 Characteristics of study participants
From: Association of advanced paternal age with lung function at school age
Characteristic | N | Data |
|---|---|---|
Age, mean ± SD (year) | 1330 | 6.4 ± 0.4 |
Sex, female, n (%) | 1330 | 576 (43.3%) |
Height, mean ± SD (cm) | 1330 | 118.5 ± 5.7 |
Paternal age at birth, mean ± SD (year) | 1330 | 34.7 ± 5.3 |
Maternal age at birth, mean ± SD (year) | 1330 | 32.2 ± 4.1 |
Prematurity, n (%) | 1330 | 204 (15.3%) |
Birth weight, mean ± SD (gm) | 1330 | 2,999.2 ± 615.6 |
Cesarean delivery, n (%) | 1330 | 473 (35.6%) |
Birth order, n (%) | 1329 | Â |
 First |  | 742 (55.8%) |
 Second |  | 475 (35.8%) |
 Third or later |  | 112 (8.4%) |
Physician-diagnosed asthma | 1323 | 305 (23.1) |
Parental university education, n (%) | 1330 | 1,164 (87.5%) |
Parental allergic diseases, n (%) | 1324 | 932 (70.4%) |
Prenatal exposure to ETS, n (%) | 1300 | 541 (41.6%) |
Breastfeeding, n (%) | 1328 | 611 (46.0%) |
Household income per year, n (%) | 1321 | Â |
 < 300,000 NTD |  | 42 (3.2%) |
 300,000-600,000 NTD |  | 216 (16.4%) |
 600,000-900,000 NTD |  | 290 (22.0%) |
 900,000–1,200,000 NTD |  | 353 (26.7%) |
 > 1,200,000 NTD |  | 420 (31.8%) |
Lung function, mean ± SD | 1322 |  |
 FVC (mL) |  | 1192.4 ± 236.5 |
 FEV1 (mL) |  | 1091.7 ± 216.4 |
 FEV1/FVC ratio (%) |  | 91.7 ± 6.3 |
 FEF75 (mL/s) |  | 848.2 ± 268.7 |
 PEF (mL/s) |  | 2070.5 ± 620.7 |
 FeNO (ppb), mean ± SD | 1275 | 32.2 ± 4.1 |