Table 4 Lung Function parameters in the first survey and annual changes (mean and C.I. 95%) adjusted for height and gender with multiple regression analysis
From: Lung function changes from childhood to adolescence: a seven-year follow-up study
2003 | Δ/year | P< | ||
|---|---|---|---|---|
Mean | Mean | model | ||
(C.I.) | (C.I.) | |||
FEV 1 (ml) | No symptoms | 1108.8 | 181.9 | NS |
(1087.6-1129.9) | (176.0 -187.9) | |||
Early transient | 1122.3 | 186.9 | ||
(1032.2-1212.4) | (161.8 - 212.1) | |||
Late onset | 1105.7 | 171.5 | ||
(1045.31 -166.0) | (154.6 - 188.4) | |||
Persistent | 1100.2 | 172.0 | ||
(1030.5 - 1169.9) | (152.4 - 191.5) | |||
FVC (ml) | No symptoms | 1121.4 | 233.8 (228.4 - 239.3) | NS |
(1100.6 - 1142.1) | ||||
Early transient | 1159.3 | 232.2 | ||
(1072.7-1245.8) | (208.4 - 255.9) | |||
Late onset | 1134.6 | 229.0 | ||
(1072.3 - 1197.0) | (212.5 - 245.4) | |||
Persistent | 1151.5 | 234.9 | ||
(1074.3 - 1228.7) | (214.5 - 255.4) | |||
FEV 1 /FVC (%) | No symptoms | 96.5 | −1.5 | * |
(95.9 - 97.2) | (−1.7 - -1.4) | |||
Early transient | 94.2 | −1.1 | ||
(91.5 - 97.0) | (−1.7 - -0.6) | |||
Late onset | 96.7 | −1.8 | ||
(94.9 - 98.5) | (−2.2 - -1.4) | |||
Persistent | 95.9 | −2.0 * | ||
(93.8 - 98.0) | (−2.4 - -1.6) | |||
FEF 25–75 (ml/s) | No symptoms | 1621.9 | 157.4 | *** |
(1580.6 - 1663.1) | (146.8 - 168.0) | |||
Early transient | 1531.5 | 158.6 | ||
(1353.4 - 1709.6) | (113.0 - 204.1) | |||
Late onset | 1570.3 | 135.5 * | ||
(1447.4 - 1693.1) | (104.0 - 166.9) | |||
Persistent | 1506.4 | 113.7 ** | ||
(1354.2 - 1658.6) | (74.7 - 152.7) |