TABLE 1.
Characteristics | Asthmatic | Control | p-value |
Patients n | 37 | 75 | |
Age years | 54 (42–67) | 60 (52–70) | 0.019* |
Male/female | 11 (30)/26 (70) | 49 (65)/26 (35) | <0.001* |
BMI kg·m−2 | 28.3 (26.8–31.5) | 28.7 (26.8–31.2)# | 0.856 |
Tobacco exposure | |||
Current/former smokers | 12 (32) | 18 (24) | 0.343 |
Never-smokers | 25 (68) | 57 (76) | 0.343 |
Comorbid conditions | |||
Obesity | 13 (36) | 24 (37)# | 0.901 |
Class I (30≤ BMI <35) | 5 | 17 | |
Class II (35≤ BMI <40) | 6 | 4 | |
Class III (BMI ≥40) | 2 | 3 | |
Overweight (25≤ BMI <30) | 18 (49) | 35 (54)# | 0.613 |
Hypertension | 10 (27) | 32 (43) | 0.161 |
Diabetes | 7 (19) | 17 (23) | 0.834 |
Renal failure | 3 (8) | 6 (8) | 1.000 |
Dialysis | 2 | 3 | |
Nephrectomy | 1 | 0 | |
Coronary heart disease | 2 (5) | 6 (8) | 1.000 |
At least two of the six comorbidities | 15 (41) | 35 (52)¶ | 0.253 |
Data are presented as median (interquartile range) or n (%), unless otherwise stated. The interquartile range is presented as first quartile – third quartile. For variables with missing data, the number of patients with available information is specified. BMI: body mass index. #: n=65; ¶: n=67; *: p<0.05.