Table 1 Baseline characteristics of the asthma discovery and validation cohort.
From: Data-driven questionnaire-based cluster analysis of asthma in Swedish adults
Patient’s characteristics | Discovery cohort (N = 1291) | Validation cohort (N = 748) | p values | ||
|---|---|---|---|---|---|
Descriptive statistics | Missing values | Descriptive statistics | Missing values | ||
Sex; % female | 61.4 | 0 | 60.0 | 0 | 0.64 |
Age in years; mean (±SD) | 54.3 (15.5) | 0 | 57.8 (14.4) | 0 | <0.01 |
BMI; mean (±SD) | 27.5 (5.7) | 5.1 | 27.4 (4.9) | 4.0 | 0.51 |
Age of onset, % | |||||
≤15 years | 36.7 | 3.3 | 33.2 | 0.05 | 0.45 |
16–45 years | 38.7 | 40.3 | |||
≥46 years | 24.6 | 26.5 | |||
Allergy against pollen or pets, % | 37.5 | 0.3 | 30.1 | 0.4 | 0.01 |
Rhinitis, % | 70.7 | 0.5 | 66.0 | 0.1 | 0.12 |
Diabetes, % | 8.1 | 0 | 9.6 | 0 | 0.45 |
Cardiovascular disease, % | 30.9 | 0 | 32.5 | 0 | 0.63 |
Depression and anxiety, % | 14.9 | 0 | 12.6 | 0 | 0.45 |
Sleep apnea, % | 8.8 | 0 | 7.0 | 0 | 0.45 |
Gastroesophageal reflux, % | 17.4 | 0 | 18.7 | 0.4 | 0.63 |
Sinusitis, % | 21.0 | 0 | 18.6 | 2.4 | 0.45 |
Night awakening last week, % | |||||
Never | 69.6 | 1.8 | 69.7 | 2.0 | 0.97 |
Once | 12.5 | 12.1 | |||
More than one | 17.9 | 18.1 | |||
Smoking, % | |||||
Never | 56.7 | 1.2 | 55.4 | 1.5 | 0.69 |
Ex | 32.6 | 34.6 | |||
Current | 10.7 | 10.0 | |||
Education level, % | |||||
Compulsory school | 25.0 | 1.3 | 35.6 | 2.0 | <0.01 |
Secondary school | 38.4 | 34.4 | |||
High education | 36.6 | 30.0 | |||
Physical activity, % | |||||
Daily | 9.0 | 3.2 | 6.7 | 2.1 | 0.45 |
Few times a week | 64.8 | 65.3 | |||
Once a month | 5.6 | 6.4 | |||
Less | 20.6 | 21.6 | |||
