Table 4 Pre-PFT questionnaires of BPTs
Parameter | BPT (+) | P value | BPT (−) | P value | ||
|---|---|---|---|---|---|---|
SP sign (+) (N = 205) | SP sign (−) (N = 3961) | SP sign (+) (N = 1124) | SP sign (−) (N = 4624) | |||
Smoking status, n (%) | .348 | < .0001 | ||||
Current or former smoker | 23 (11%) | 535 (14%) | 155 (15%) | 888 (19%) | ||
Never smoker | 182 (89%) | 3426 (86%) | 969 (86%) | 3753 (81%) | ||
Chronic cough, n (%) | < .0001 | < .0001 | ||||
Rare | 49 (24%) | 1428 (36%) | 171 (15%) | 1176 (25%) | ||
Sometimes | 156 (76%) | 2533 (64%) | 947 (85%) | 3448 (75%) | ||
Sputum production, n (%) | 105/205 (51%) | 1967/3961 (50%) | .663 | 568/1124 (51%) | 2478/4624 (54%) | .066 |
Wheezing, n (%) | 77/205 (38%) | 1209/3961 (31%) | .033 | 342/1124 (30%) | 865/4624 (19%) | < .0001 |
PFT indication, n (%) | ||||||
Cough | 61/205 (30%) | 1345/3961 (34%) | .360 | 663/1124 (59%) | 2494/4624 (54%) | < .0001 |
COPD | 2/205 (1%) | 152/3961 (4%) | .034 | 64/1124 (6%) | 237/4624 (5%) | .443 |
Asthma | 162/205 (79%) | 2098/3961 (53%) | < .0001 | 162/1124 (14%) | 675/4624 (15%) | .875 |
Bronchiectasis | 5/205 (2%) | 26/3961 (1%) | .016 | 46/1124 (14%) | 90/4624 (2%) | < .0001 |
ILD | 0/205 (0%) | 17/3961 (0%) | 1.000 | 10/1124 (1%) | 55/4624 (1%) | .394 |
Rhinitis/sinusitis | 50/205 (24%) | 46/3961 (1%) | < .0001 | 147/1124 (13%) | 50/4624 (1%) | < .0001 |
Gastroesophageal reflux | 2/205 (1%) | 1/3961 (0.03%) | .007 | 15/1124 (1%) | 3/4624 (0%) | < .0001 |
Pneumonia | 10/205 (5%) | 29/3961 (0.7%) | < .0001 | 58/1124 (5%) | 102/4624 (2%) | < .0001 |
Shortness of breath | 5/205 (2%) | 65/3961 (2%) | .393 | 43/1124 (4%) | 143/4624 (3%) | .213 |
Chest distress | 4/205 (2%) | 35/3961 (1%) | .123 | 29/1124 (3%) | 121/4624 (3%) | .945 |
Othersa | 4/205 (2%) | 147/3961 (4%) | 1.000 | 7/1124 (1%) | 654/4624 (14%) | < .0001 |