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Table 1 Characteristics of the study population

From: Subtypes of asthma based on asthma control and severity: a latent class analysis

  Women Men Total population
N (%) N (%) N (%)
 Total N 1303 (65.3) 692 (34.7) 1995 (100.0)
Age
 <30 years 141 (10.8) 71 (10.3) 212 (10.6)
 30–59 years 848 (65.1) 420 (61.7) 1268 (63.6)
 ≥60 years 314 (24.1) 201 (29.1) 515 (25.8)
Asthma controller medication usea
 Not at all 80 (6.2) 48 (7.1) 128 (6.5)
 Occasionally 200 (15.6) 103 (15.2) 303 (15.4)
 Daily 1006 (78.2) 528 (77.8) 1534 (78.1)
 Missing 17 13 30
Inhaled bronchodilatator use
 Not at all 217 (17.2) 147 (22.0) 364 (18.9)
 Occasionally 834 (66.0) 365 (54.7) 1199 (62.1)
 Daily 213 (16.9) 155 (23.2) 368 (19.1)
 Missing 39 25 64
Antibiotics for asthma exacerbations
 0 prescription 970 (76.1) 590 (87.0) 1560 (79.9)
 1 prescription 119 (9.3) 41 (6.1) 160 (8.2)
 2 prescriptions 80 (6.3) 23 (3.4) 103 (5.3)
 ≥3 prescriptions 106 (8.1) 24 (3.5) 130 (6.7)
 Missing 28 14 42
Oral corticosteroid use
 0 prescriptions 893 (70.5) 558 (83.2) 1451 (74.9)
 1–2 prescriptions 294 (23.2) 86 (12.8) 380 (19.6)
 ≥3 prescriptions 49 (3.9) 20 (3.0) 69 (3.6)
 Daily use 30 (2.4) 7 (1.0) 37 (1.9)
 Missing 37 21 58
St. George’s score 4 weeksb
 0 to ≤7 300 (23.3) 180 (26.6) 480 (24.4)
 >7 to ≤15 327 (25.4) 142 (21.0) 469 (23.9)
 >15 to ≤27 331 (25.7) 166 (24.5) 497 (25.3)
 >27 330 (25.6) 189 (27.9) 519 (26.4)
 Missing 15 15 30
Health care facility use scorec
 0 points 936 (73.0) 580 (84.2) 1516 (76.9)
 1 point 107 (8.4) 34 (4.9) 141 (7.2)
 2–3 points 183 (14.3) 56 (8.1) 239 (12.1)
 ≥4 points 56 (4.4) 19 (2.8) 75 (3.8)
 Missing 21 3 24
COPD diagnosis
 Yes 126 (10.0) 152 (23.2) 278 (14.5)
 No 1135 (90.0) 504 (76.8) 1639 (85.5)
 Missing 42 36 78
Allergic Rhinitis and/or Allergic Eczema
 Yes 891 (68.9) 402 (59.4) 1293 (65.9)
 No 394 (30.7) 275 (40.6) 669 (34.1)
 Missing 18 15 33
BMI
 ≤ 25 504 (39.6) 216 (31.6) 720 (36.8)
 >25 to ≤30 420 (33.0) 286 (41.8) 706 (36.1)
 >30 350 (26.9) 170 (26.3) 532 (26.7)
 Missing 29 8 37
  1. aAsthma controller medication use includes both inhaled corticosteroids and combination medication of inhaled corticosteroid and long-acting beta-agonist
  2. bSt. George’s score range: 0–100
  3. cHCU score formed as a combination of sick leave due to asthma, emergency room visits for asthma, ward treatment periods for asthma, and acute primary health care visits due to asthma