Table 5 Pre-PFT questionnaires of BDTs
Parameter | BDT (+) | BDT (−) | ||||
|---|---|---|---|---|---|---|
SP sign (+) (N = 12) | SP sign (−) (N = 2235) | P value | SP sign (+) (N = 119) | SP sign (−) (N = 3728) | P value | |
Smoking status, n (%) | .111 | .005 | ||||
Current or former smoker | 3 (25%) | 1083 (48%) | 45 (38%) | 1929 (52%) | ||
Never smoker | 9 (75%) | 1172 (52%) | 74 (62%) | 1799 (48%) | ||
Chronic cough, n (%) | .338 | .270 | ||||
Rare | 2 (17%) | 625 (28%) | 27 (23%) | 1016 (27%) | ||
Sometimes | 10 (83%) | 1610 (72%) | 92 (77%) | 2712 (73%) | ||
Sputum production, n (%) | 9/12 (75%) | 1559/2235 (70%) | 1.000 | 75/119 (63%) | 2651/3728 (71%) | .056 |
Wheezing, n (%) | 11/12 (92%) | 1234/2235 (55%) | .011 | 68/119 (57%) | 1703/3728 (46%) | .014 |
PFT indication, n (%) | ||||||
Cough | 2/12 (17%) | 262/2235 (12%) | .643 | 8/119 (7%) | 328/3728 (9%) | .430 |
COPD | 0/12 (0%) | 809/2235 (34%) | .006 | 33/119 (28%) | 1696/3728 (45%) | < .0001 |
Asthma | 10/12 (83%) | 905/2235 (40%) | .002 | 38/119 (32%) | 720/3728 (19%) | < .0001 |
Bronchiectasis | 0/12 (0%) | 54/2235 (2%) | 1.000 | 11/119 (9%) | 293/3728 (8%) | .582 |
ILD | 0/12 (0%) | 12/2235 (1%) | 1.000 | 3/119 (3%) | 70/3728 (2%) | .493 |
Rhinitis/sinusitis | 3/12 (25%) | 18/2235 (1%) | < .0001 | 21/119 (18%) | 39/3728 (1%) | < .0001 |
Gastroesophageal reflux | 0/12 (0%) | 1/2235 (0%) | 1.000 | 3/119 (3%) | 0/3728 (0%) | < .0001 |
Pneumonia | 3/12 (25%) | 56/2235 (3%) | .003 | 16/119 (13%) | 210/3728 (6%) | < .0001 |
Shortness of breath | 1/12 (8%) | 114/2235 (5%) | .468 | 5/119 (4%) | 176/3728 (5%) | .792 |
Chest distress | 0/12 (0%) | 9/2235 (0%) | 1.000 | 2/119 (2%) | 25/3728 (1%) | .203 |
Othersa | 0/12 (0%) | 48/2235 (2%) | 1.000 | 5/119 (4%) | 171/3728 (5%) | .843 |