Table 5.
Comparison of lung function parameters between asthmatics and healthy controls by age groups
| Age ≤ 6 | Age > 6 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| aVariables | N | Asthmatic | N | Healthy | * P Value | N | Asthmatic | N | Healthy | * P Value |
| LCI | 12 | 7.24 (1.56) | 13 | 6.14 (0.46) | 0.02 | 21 | 6.41 (0.61) | 32 | 6.20 (0.54) | 0.21 |
| LCI z‐score | 12 | 0.57 (2.18) | 13 | −1.10 (1.00) | 0.03 | 21 | −0.28 (1.15) | 32 | −0.72 (1.13) | 0.18 |
| FRC | 12 | 0.54 (0.10) | 13 | 0.68 (0.12) | <0.01 | 21 | 1.51 (0.59) | 32 | 1.27 (0.55) | 0.16 |
| FRC z‐score | 12 | −0.31 (0.96) | 13 | 0.28 (1.03) | 0.16 | 21 | −0.41 (1.07) | 32 | −0.88 (1.11) | 0.14 |
| Scond | 10 | 0.05 (0.03) | 12 | 0.03 (0.02) | 0.05 | 15 | 0.02 (0.02) | 21 | 0.02 (0.01) | 0.2 |
| FEV1 (% predicted) | 5 | 93.0 (18.0) | 7 | 92.2 (12.6) | 0.93 | 21 | 97.95 (11.3) | 31 | 101.9 (10.4) | 0.15 |
| FEV1 z‐score | 5 | −0.5 (1.37) | 7 | −0.59 (0.95) | 0.94 | 21 | −0.15 (0.95) | 31 | 0.16 (0.88) | 0.16 |
| FEV1/FVC (% predicted) | 4 | 101.5 (4.7) | 4 | 98.4 (15.2) | 0.77 | 21 | 90.8(7.5) | 23 | 97.3 (7.3) | 0.01 |
| FEV1/FVC z‐score | 4 | 0.27 (0.84) | 4 | 0.21 (1.85) | 0.96 | 21 | −1.23 (1.00) | 23 | −0.33 (1.01) | 0.01 |
a
Variables are presented as mean (SD).
*
P values were calculated using 2‐sample Student t‐test or Mann‐Whitney U test, where appropriate.