TABLE II.
Comparison of demographic factors between disease statuses*
| Demographic characteristic: % (n) or median (IQR) | Nonobstructed nonasthma (77.8%; n = 9274) |
Asthma-only (13.6%; n = 1622) |
COPD-only (4.8%; n = 577) |
ACO (3.8%; n = 450) |
P value |
|---|---|---|---|---|---|
| Age (y) | 53.9 (46.7–62.9) | 53.9 (46.8–62) | 59 (51–66.9) | 58 (51.6–66) | <.001 |
| Female | 49.2% (4561) | 49.6% (804) | 37.1% (214) | 41.8% (188) | <.001 |
| BMI (kg/m2) | 26.4 (22.8–30.1) | 26.6 (22.5–30.6) | 23.4 (19.3–27.6) | 23.1 (19.0–28.5) | <.001 |
| Obese (BMI ≥30 kg/m2) | 25.5% (2465) | 28.9% (469) | 13.0% (75) | 18.0% (81) | <.001 |
| Pack-years smoking | 0 (0–0) | 0 (0–2.8) | 0.3 (0–19.7) | 0 (0–20.3) | <.001 |
| Daily smoker | 9.8% (904) | 13.6% (220) | 22.9% (132) | 24.4% (110) | <.001 |
| Household using biomass fuels | 34.5% (3148) | 31.3% (492) | 44.7% (257) | 42.7% (188) | <.001 |
| Primary education or less | 59.5% (5513) | 59.3% (961) | 67.1% (387) | 70.7% (318) | <.001 |
IQR, Interquartile range.
*
P value refers to inequality of metric across all disease status groups from ANOVA or χ2 test.