Characteristic | Formoterol | Salbutamol | All |
---|---|---|---|
(n = 1418) | (n = 1416) | (n = 2834) | |
Male | 736 (51.9) | 700 (49.4) | 1436 (50.7) |
Mean age, years (range) | 35 (5–81) | 36 (6–85) | 35 (5–85) |
Age groups | |||
Children ≤11 years | 254 (17.9) | 258 (18.2) | 512 (18.1) |
Adolescents 12–17 years | 121 (8.5) | 111 (7.8) | 232 (8.2) |
Adults 18–64 years | 957 (67.5) | 946 (66.8) | 1903 (67.1) |
Elderly ≥65 years | 86 (6.1) | 101 (7.1) | 187 (6.6) |
Race | |||
Oriental | 1397 (98.5) | 1389 (98.1) | 2786 (98.3) |
Caucasian | 4 (0.3) | 8 (0.6) | 12 (0.4) |
Other | 17 (1.2) | 19 (1.3) | 36 (1.3) |
Asthma severity (judged by asthma medication level)* | |||
Intermittent | 206 (14.5) | 201 (14.2) | 407 (14.4) |
Mild | 740 (52.2) | 713 (50.4) | 1453 (51.3) |
Moderate | 299 (21.1) | 318 (22.5) | 617 (21.8) |
Severe | 173 (12.2) | 184 (13.0) | 357 (12.6) |
Regular smoker | 158 (11.1) | 148 (10.5) | 306 (10.8) |