Table 2.
Subjects' characteristics and incidence of cough lasting more than 3 weeks in the preceding year in children not exposed to environmental tobacco smoke divided according to age group and living in urban or rural area.
| Urban area | Rural area | |||
|---|---|---|---|---|
| School age | Teen age | School aged | Teen age | |
| NO. | ||||
| Girls | 23 | 58 | 15 | 23 |
| Boys | 30 | 61 | 11 | 26 |
| HEIGHT (cm) | ||||
| Girls | 144.7 (14.6) | 168.0 (7.1)** | 143.8 (11.6) | 165.9 (5.0)* |
| Boys | 150.8(9.8) | 171.9 (11.8)**§ | 147.6 (10.1) | 175.4 (10.9)**§§ |
| WEIGHT (kg) | ||||
| Girls | 38.9 (11.5) | 54.7 (8.2)** | 37.8 (6.9) | 55.9 (8.4)** |
| Boys | 42.0 (9.0) | 60.6 (11.8)**§§ | 38.7 (7.4) | 64.2 (12.3)**§§ |
| FEV1 (%) | ||||
| Girls | 94.5 (10.5) | 89.3 (9.2)* | 94.6 (10.9) | 91.7 (10.2) |
| Boys | 95.7 (10.3) | 96.1 (17.0)§§ | 97.5 (5.2) | 99.4 (12.0)® |
| FEV1/FVC (%) | ||||
| Girls | 91.8 (5.5) | 90.6 (7.5) | 92.6 (8.4) | 92.8 (5.9) |
| Boys | 90.2 (7.4) | 89.5 (9.1) | 90.1 (6.2)® | 89.3 (7.5) |
| CRS$ | ||||
| Girls | 22.0 (10.6–45.6) | 108.8(68.7–172.9)* | 215.9(87.3–533.4)# | 142.7(68.6–296.5) |
| Boys | 40.0 (21.1–75.2) | 92.7(59.1–145.0) | 47.2 (16.3–135.6) | 122.8(61.7–244.2) |
| WET COUGH | ||||
| At least 1 episode | 19 (35.8) | 32 (28.6) | 9 (34.6) | 11 (22.4) |
| Girls | 7 (30.4) | 20 (34.5) | 4 (26.7) | 3 (13.0) |
| Boys | 12 (40.0) | 14 (22.9) | 5 (45.4) | 8 (30.8) |
| More than 1 episode | 6 (11.3) | 12 (10.1) | 2 (7.7) | 3 (6.2) |
| Girls | 1 (4.3) | 6 (10.3) | 1 (6.7) | 1 (4.3) |
| Boys | 5 (16.7) | 6 (9.8) | 1 (9.1) | 2 (8.0) |
| DRY COUGH | ||||
| At least 1 episode | 13 (24.5) | 27 (22.7) | 4 (15.4) | 12 (24.5) |
| Girls | 5 (21.7) | 13 (22.4) | 3 (20.0) | 5 (21.7) |
| Boys | 8 (26.7) | 14 (22.9) | 1 (9.1) | 7 (26.9) |
| More than 1 episode | 4 (7.5) | 6 (5.1) | 1 (3.8) | 3 (6.4) |
| Girls | 0 (0.0) | 2 (3.4) | 1 (6.7) | 1 (4.5) |
| Boys | 4 (13.3) | 4 (6.7) | 0 (0.0) | 2 (8.0) |
Between groups comparisons of subjects characteristics performed by two sample T-test.
Between groups comparisons of cough incidence provided by χ2 test (if n ≥ 5) or Fisher's exact test Results are presented as mean (SD) or n (%), except where indicated
mean (95% CI)
Significance of difference between two age groups of the same living area group at the level of
p < 0.01,
p < 0.05
Significance of difference between urban and rural children of the same age at the level of
p < 0.05
Significance of difference between gender of the same age and living area group at the level of
p < 0.05.