From: A retrospective study of two populations to test a simple rule for spirometry
 | Normal (n = 532) | Obstructed (n = 815) | Restricted (n = 701) | Significance |
---|---|---|---|---|
Wheeze [n (%)] | 234 (44.0) | 593 (72.8) | 407 (58.1) | p < 0.001 |
Cough [n (%)] | 285 (53.6) | 587 (72.0) | 414 (59.1) | p < 0.001 |
SOB [n (%)] | 302 (56.8) | 669 (82.1) | 501 (71.5) | p < 0.001 |
Sputum [n (%)] | 195 (36.7) | 455 (55.8) | 281 (40.1) | p < 0.001 |
# of Symptoms [mean (SD)] | 1.9 (1.4) | 2.8 (1.2) | 2.3 (1.4) | p < 0.001 |
Self-reported COPD [n (%)] | 32 (6.0) | 304 (37.3) | 77 (11.0) | p < 0.001 |
Self-reported asthma [n (%)] | 25 (4.7) | 135 (16.6) | 43 (6.1) | p < 0.001 |
Self-reported asthma & COPD [n (%)] | 3 (0.6) | 77 (9.5) | 14 (2.0) | p < 0.001 |
Self-reported CHD [n (%)] | 64 (12.0) | 146 (17.9) | 144 (20.5) | p < 0.001 |