Table 1 Demographic status and comorbidity compared between cohorts with and without COPD
Variables | Non-COPD | COPD | p |
|---|---|---|---|
N = 38010 | N = 38010 | ||
Age, years | n (%) | n (%) | |
<50 | 11209 (29.5) | 11097 (29.2) | 0.3245 |
50–69 | 14515 (38.2) | 14436 (38.0) | |
≥70 | 12286 (32.3) | 12477 (32.8) | |
mean (SD) | 59.0 (17.1) | 59.2 (17.0) | 0.1365 |
Gender | 1.0000 | ||
Female | 16344 (43.0) | 16344 (43.0) | |
Male | 21666 (57.0) | 21666 (57.0) | |
Monthly income | <0.0001 | ||
Low | 16787 (44.2) | 16338 (43.0) | |
Median | 19109 (50.3) | 19757 (52.0) | |
High | 2114 (5.60) | 1915 (5.00) | |
Level of urbanization | <0.0001 | ||
Urban | 21149 (55.9) | 20479 (54.1) | |
Suburban | 12327 (32.6) | 12465 (32.9) | |
Rural | 4373 (11.6) | 4919 (13.0) | |
Comorbidity | |||
Hypertension | 10565 (27.8) | 15190 (40.0) | <0.0001 |
Arthritis | 6390 (16.8) | 9799 (25.8) | <0.0001 |
Diabetes | 4474 (11.8) | 6027 (15.9) | <0.0001 |
Heart disease | 6473 (17.0) | 11871 (31.2) | <0.0001 |
Chronic kidney disease | 601 (1.60) | 903 (2.40) | <0.0001 |
Cancer | 1591 (4.20) | 2480 (6.50) | <0.0001 |