Variables | Study group n (%) | Control n (%) | X2 | p-value |
Cough Yes No |
69 (72.6) 26 (27.4) |
11 (11.6) 84 (88.4) | 7.552 | 0.001 |
Phlegm production Yes No |
21 (22.1) 74 (77.9) |
15 (15.8) 80 (84.2) | 1.234 | 0.267 |
Breathless while walking on level ground or up a slight hill Yes No |
21 (22.1) 74 (77.9) |
9 (9.4) 86 (90.6) | 5.700 | 0.017 |
Had wheezing attack at any time in past 12 months Yes No |
14 (14.7) 81 (85.3) |
9 (9.4) 86 (90.6) | 1.237 | 0.266 |