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. 2019 Jul 30;20:169. doi: 10.1186/s12931-019-1134-7

Table 1.

Summary of patient demographics and baseline characteristics by body weight and BMI

Body weight BMI Total population (N = 936)
Categories Thresholds Categories Thresholds
≤60 kg (N = 144) > 60–75 kg (N = 319) > 75–90 kg (N = 288) > 90 kg (N = 185) < 100 kg (N = 819) ≥100 kg (N = 117) ≤25 kg/m2 (N = 323) > 25–30 kg/m2 (N = 330) > 30 kg/m2 (N = 283) < 36 kg/m2 (N = 844) ≥36 kg/m2 (N = 92)
Female, n (%) 125 (87) 198 (62) 149 (52) 76 (41) 499 (61) 49 (42) 188 (58) 179 (54) 181 (64) 482 (57) 66 (72) 548 (59)
Mean (SD) age, years 46.5 (18.7) 51.5 (14.0) 52.1 (12.0) 50.1 (11.3) 50.9 (14.2) 48.9 (11.3) 47.8 (16.4) 53.1 (13.0) 51.0 (11.0) 50.9 (14.1) 48.5 (11.7) 50.6 (13.9)
Mean (SD) duration of asthma, years 17.4 (12.1) 20.3 (14.9) 20.0 (14.5) 20.0 (14.9) 19.8 (14.4) 18.9 (14.6) 17.9 (13.8) 20.1 (14.4) 21.4 (14.9) 19.4 (14.2) 23.1 (15.4) 19.7 (14.4)
Clinically significant exacerbations in the previous year, n (%)
 Mean (SD) 3.4 (2.2) 3.2 (2.7) 3.0 (1.8) 3.2 (2.2) 3.2 (2.3) 3.2 (2.2) 3.2 (2.4) 3.1 (2.2) 3.2 (2.1) 3.2 (2.3) 3.3 (2.4) 3.2 (2.3)
 2 72 (50) 187 (59) 171 (59) 91 (49) 464 (57) 57 (49) 181 (56) 188 (57) 152 (54) 472 (56) 49 (53) 521 (56)
 3 28 (19) 61 (19) 52 (18) 49 (26) 160 (20) 30 (26) 60 (19) 73 (22) 57 (20) 170 (20) 20 (22) 190 (20)
 ≥ 4 44 (31) 71 (22) 65 (23) 45 (24) 195 (24) 30 (26) 82 (25) 69 (21) 74 (26) 202 (24) 23 (25) 225 (24)
Receiving maintenance OCS therapy at baseline, n (%)
 Yes 24 (17) 80 (25) 71 (25) 52 (28) 196 (24) 31 (26) 79 (24) 74 (22) 74 (26) 204 (24) 23 (25) 227 (24)
 No 120 (83) 239 (75) 217 (75) 133 (72) 623 (76) 86 (74) 244 (76) 256 (78) 209 (74) 640 (76) 69 (75) 709 (76)
Mean (SD) % predicted pre-bronchodilator FEV1 62.8 (16.8) 59.4 (17.8) 59.1 (15.8) 57.7 (16.6) 59.5 (16.8) 59.4 (17.2) 61.4 (17.7) 58.7 (16.6) 58.3 (16.1) 59.7 (17.0) 58.1 (15.7) 59.5 (16.8)
Mean (SD) SGRQ total score 45.5 (20.6) 45.0 (18.6) 47.7 (19.1) 50.8 (17.5) 46.6 (19.2) 50.6 (17.1) 43.9 (19.5) 46.5 (18.5) 51.4 (18.1) 46.3 (19.0) 53.7 (17.4) 47.1 (18.9)
Mean (SD) ACQ-5 score 2.2 (1.3) 2.2 (1.1) 2.1 (1.2) 2.5 (1.2) 2.2 (1.2) 2.4 (1.1) 2.2 (1.1) 2.1 (1.2) 2.4 (1.2) 2.2 (1.2) 2.5 (1.2) 2.2 (1.2)
Geometric mean (SD of log) blood eosinophil count, cells/μL 370 (1.13) 320 (0.93) 300 (0.90) 360 (0.87) 320 (0.96) 360 (0.85) 350 (0.98) 310 (0.90) 310 (0.96) 320 (0.96) 330 (0.81) 330 (0.95)

Percentages may not add up to 100, due to rounding

Abbreviations: ACQ Asthma Control Questionnaire, BMI Body mass index, FEV1 Forced expiratory volume in 1 s, OCS Oral corticosteroid, SD Standard deviation, SGRQ St George’s Respiratory Questionnaire