Table 5.
Respiratory symptoms, height, weight, BMI, and lung function at first testing, n=1,895
| All | Low | Intermittent | Frequent | Acid | P-value | |
|---|---|---|---|---|---|---|
| 1895 | 523 | 562 | 103 | 707 | ||
| Diagnosed asthma (%) | 23 | 23 | 29 | 18 | 19 | <0.001 |
| Asthma, last 12 m (%)* | 12 | 13 | 15 | 7 | 8 | <0.001 |
| Head cold in last month (%) |
53 | 47 | 59 | 52 | 52 | <0.005 |
| Chest cold in last month (%) |
34 | 33 | 36 | 31 | 34 | 0.65 |
| Standing height (cm) | 139.6±8.3 | 139.1±8.4 | 138.7±8.3 | 137.4±7.8 | 140.9±8.2 | <0.0001 |
| Sitting height (cm) | 74.5±4.4 | 74.3±4.5 | 74.4±4.5 | 73.0±4.5 | 74.9±4.2 | <0.0001 |
| Weight (kg) | 38.2±12.0 | 37.5±11.2 | 38.0±11.5 | 36.3±11.1 | 39.1±13.0 | <0.05 |
| BMI (mean) | 19.3±4.4 | 19.1±4.3 | 19.5±4.2 | 19.0±4.5 | 19.4±4.6 | NS |
| BMI percentile | <0.01 | |||||
| <50th | 63 (3) | 23 (4) | 14 (2) | 9 (9) | 17 (2) | |
| Normal | 1150 (61) | 322 (62) | 327(58) | 67 (63) | 436 (62) | |
| >85th | 314 (17) | 73 (14) | 109 (19) | 15 (15) | 117 (17) | |
| >95th | 368 (19) | 105 (20) | 112 (20) | 14 (14) | 137 (19) | |
| Lung Function | ||||||
| n | 1836 | 504 | 551 | 103 | 678 | |
| FEV1 (L) | 1.92±0.36 | 1.93±0.36 | 1.89±0.34 | 1.83±0.34 | 1.95±0.36 | <0.005 |
| FVC (L) | 2.26±0.43 | 2.26±0.44 | 2.23±0.41 | 2.13±0.41 | 2.29±0.44 | <0.005 |
| FEV1/(sitting height**)2 | 3.44±0.47 | 3.48±0.45 | 3.41±0.47 | 3.41±0.46 | 3.44±0.47 | NS |
| FEV1/FVC | 0.85±0.07 | 0.85±0.06 | 0.85±0.07 | 0.86±0.07 | 0.85±0.07 | NS |
*
226/429 respondents with asthma responded to this question. Others did not respond or responded, “don’t know.”
**
sitting height in m