Korean Journal of Family Practice

Table. 1.

General characteristics of study subjects

Characteristics COPD
(N=3,145)
NCOPD
(N=16,748)
P-value Obstructive severity
Mild
(N=1,459)
Moderate
(N=1,534)
Severe, very severe
(N=152)
P-value
Age (y) 64.18±0.25 53.76±0.11 <0.001 65.56±0.36 62.93±0.35 63.96±0.96 <0.001
Age group (y)
40–49 212 (10.6) 5,665 (41.8) <0.001 80 (8.3) 130 (13.3) 2 (3.9) <0.001
50–59 595 (22.6) 5,416 (31.6) 237 (20.1) 320 (24.1) 38 (31.4)
60–69 1,141 (30.2) 3,728 (16.2) 500 (28.9) 590 (31.7) 51 (27.4)
70–79 1,197 (36.6) 1,939 (10.4) 642 (42.8) 494 (30.9) 61 (37.3)
Sex
Male 2,254 (73.1) 5,895 (43.1) <0.001 1,046 (72.4) 1,093 (73.3) 115 (77.8) 0.454
Female 891 (26.9) 10,853 (56.9) 413 (27.6) 441 (26.7) 37 (22.2)
Houshold income
First quartile 771 (26.3) 3,708 (23.5) 0.006 334 (23.6) 378 (27.5) 59 (39.3) 0.009
Second quartile 782 (26.2) 4,136 (25.4) 363 (27.8) 390 (25.4) 29 (19.3)
Third quartile 792 (24.9) 4,262 (25.5) 373 (24.5) 383 (25.1) 36 (27.0)
Fourth quartile 741 (22.6) 4,463 (25.6) 371 (24.1) 343 (21.9) 27 (14.5)
BMI
<18.5 87 (2.9) 241 (1.3) <0.001 22 (1.9) 43 (2.8) 22 (13.2) <0.001
18.5≤BMI<25.0 2,119 (66.6) 10,485 (61.8) 1,046 (69.9) 977 (63.8) 96 (63.7)
≥25 939 (30.5) 6,022 (36.9) 391 (28.2) 514 (33.4) 34 (23.1)
Smoking status
Never 1,002 (31.1) 10,957 (59.8) <0.001 461 (31.3) 502 (31.5) 39 (25.6) 0.011
Former 897 (28.9) 2,373 (16.2) 457 (32.1) 399 (25.9) 41 (28.6)
Current 1,183 (40.0) 3,147 (24.0) 520 (36.6) 594 (42.6) 69 (45.8)

Values are presented as number (%) or mean±standard deviation.

COPD, chronic obstructive pulmonary disease; NCOPD, non-chronic obstructive pulmonary disease; BMI, body mass index.

Korean J Fam Pract 2021;11:288~295 https://doi.org/10.21215/kjfp.2021.11.4.288
© KJFP