TABLE 5.

The association between chronic obstructive pulmonary disease (COPD) and patient gender, age, and ethnicity.

Participant characteristics	Non-COPD (N = 8,433)	COPD (N = 404)	P-value
Age (years)			< 0.001
14–34	3,996 (100.0%)	0 (0.0%)	–
35–59	2,868 (97.4%)	77 (2.6%)	–
60–84	1,510 (83.0%)	309 (17.0%)	–
≥ 85	59 (76.6%)	18 (23.4%)	–
Gender			0.192
Male	4,142 (95.7%)	185 (4.3%)	–
Female	4,291 (95.1%)	219 (4.9%)	–
Ethnicity			< 0.001
Han	1,208 (99.8%)	2 (0.2%)	–
Kyrgyz	330 (97.3%)	9 (2.7%)	–
Uygur	6,895 (94.6%)	393 (5.4%)	–