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Table 1 Patient demographics and clinical assessments by physician-assigned diagnosis

From: Chronic Airways Assessment Test: psychometric properties in patients with asthma and/or COPD

Variable

Asthma

(N = 510)

Asthma + COPD

(N = 510)

COPD

(N = 510)

Total sample

(N = 1530)

Age, years, mean (SD)

54.6 (15.7)

65.2 (9.9)

67.3 (9.6)

62.4 (13.3)

Female, n (%)

328 (64.3)

240 (47.1)

203 (39.8)

771 (50.4)

Ethnicity, n (%)

    

 African American

15 (2.9)

17 (3.3)

15 (2.9)

47 (3.1)

 Caucasian

367 (72.0)

398 (78.0)

441 (86.5)

1206 (78.8)

 North-east Asian

82 (16.1)

76 (14.9)

35 (6.9)

193 (12.6)

 South-east Asian

9 (1.8)

5 (1.0)

1 (0.2)

15 (1.0)

 Other

37 (7.3)

14 (2.7)

18 (3.5)

69 (4.5)

Time since diagnosis, years

    

 Patients with data, n

466

465

465

1396

 Mean (SD)

17.8 (16.1)

21.0 (20.5)

8.1 (9.1)

15.6 (16.9)

Physician-assessed severity,a n (%)

    

 Mild

181 (35.5)

70 (13.7)

151 (29.6)

402 (26.3)

 Moderate

190 (37.3)

233 (45.7)

142 (27.8)

565 (36.9)

 Severe

139 (27.3)

207 (40.6)

217 (42.5)

563 (36.8)

Post-bronchodilator FEV1 (% predicted)

    

 Patients with data, n

400

433

420

1253

 Mean (SD)

85.6 (20.5)

66.7 (20.8)

60.4 (23.6)

70.6 (24.1)

Post-bronchodilator FEV1/FVC (% predicted)

    

 Patients with data, n

400

431

419

1250

 Mean (SD)

91.8 (13.9)

75.1 (18.1)

71.5 (20.8)

79.2 (19.9)

SGRQ total scoreb

    

 Patients with data, n

500

502

501

1503

 Mean (SD)

29.6 (20.2)

40.6 (22.2)

41.7 (21.2)

37.3 (21.9)

EQ-5D-5L VAS scoreb

    

 Patients with data, n

434

451

450

1335

 Mean (SD)

74.4 (17.5)

67.2 (20.0)

64.8 (20.2)

68.7 (19.7)

CAAT total scorec

    

 Patients with data, n

510

510

510

1530

 Mean (SD)

13.7 (8.2)

17.2 (8.6)

16.9 (8.2)

15.9 (8.5)

CAT total scorec

    

 Patients with data, n

NA

37

46

83

 Mean (SD)

NA

15.1 (9.0)

16.5 (9.2)

15.9 (9.1)

All NOVELTY patients who completed both the CAAT and CAT (N = 277)d

CAAT total scorec

    

 Patients with data, n

NA

66

211

277

 Mean (SD)

NA

16.6 (9.5)

16.0 (8.8)

16.2 (8.9)

CAT total scorec

    

 Patients with data, n

NA

66

211

277

 Mean (SD)

NA

15.5 (9.8)

15.0 (8.6)

15.1 (8.9)

  1. Patients with missing data were not included
  2. CAAT Chronic Airways Assessment Test, CAT COPD Assessment Test, COPD chronic obstructive pulmonary disease, EQ-5D-5L VAS EuroQol 5-dimensions 5-level visual analogue scale, FEV1 forced expiratory volume in 1 s, N total number of patients in the sample, n number of patients with non-missing data, NA not applicable, SD standard deviation, SGRQ St George’s Respiratory Questionnaire
  3. aFor patients with asthma + COPD, severity was allocated as the higher of the two severity categories assigned by the physician for their asthma and their COPD; bRange: 0–100; cRange: 0–40; dData for all NOVELTY patients with asthma + COPD or COPD who completed the CAAT and CAT, including those not represented in the N = 1530 total sample