Symptoms n (%) | Bus conductors n = 110 | Bus drivers n = 107 | Taxi motorcyclists n = 102 | High school teachers n = 106 | p value |
---|---|---|---|---|---|
Cough | |||||
Morning cough | 11 (10) | 13 (12.1) | 9 (8.8) | 5 (4.7) | 0.281 |
At least 4 days a week | 49 (44.5) | 45 (24) | 36 (35.2) | 15 (14.1) | <0.001 |
Phlegm | |||||
Morning phlegm | 26 (23.6) | 19 (17.7) | 24 (23.5) | 5 (4.7) | <0.001 |
At least 4 days a week | 45 (40.9) | 35 (32.7) | 27 (26.4) | 9 (8.4) | <0.001 |
Wheezing > 16y old | 25 (22.7) | 5 (4.6) | 7 (6.8) | 8 (7.5) | <0.001 |
Short breath | 30 (27.2) | 38 (35.5) | 43 (42.1) | 17 (16) | <0.001 |
Chest pain | 19 (17.2) | 0 (0.0) | 0 (0.0) | 14 (13.2) | <0.001 |
Restrictive syndrome | 26 (27.3) | 22 (23.2) | 29 (30.4) | 14 (14.7) | 0.061 |
Mixed syndrome | 16 (21.9) | 8 (10.9) | 10 (15.4) | 6 (7.1) | 0.042 |
Obstructive syndrome | 7 (10.9) | 6 (9.1) | 6 (9.8) | 3 (3.7) | 0.372 |