Table 1 Patient characteristics
Variables | Total (n = 337) | COPD (n = 170) | Non-COPD (n = 167) | p value |
|---|---|---|---|---|
Age(years) | ||||
Mean(±SD) | 66.8(±10.9) | 70.4(±8.9) | 63.2(±11.6) | 5.550E-10 |
≥ 65 | 195(57.9) | 120(70.6) | 75(44.9) | 1.814E-06 |
< 65 | 142(42.1) | 50(29.4) | 92(55.1) | |
Gender | ||||
Male | 262(77.7) | 154(90.6) | 108(64.7) | 1.072E-08 |
Female | 75(22.3) | 16(9.4) | 59(35.3) | |
History of smoking | ||||
Never smoker | 81(24.0) | 18(10.6) | 63(37.7) | 5.580E-09 |
Former or current smoker | 256 (76.0) | 152(89.4) | 104(62.3) | |
Cancer stage | ||||
III | 123(36.5) | 70(41.2) | 53(31.7) | 0.090 |
IV | 214(63.5) | 100(58.8) | 114(68.3) | |
Histology | ||||
Adenocarcinoma | 179(53.1) | 60(35.3) | 119(71.3) | 1.872E-09 |
Squamous-cell carcinoma | 132(39.2) | 94(55.3) | 38(22.8) | |
Large cell carcinoma | 1(0.3) | 1(0.6) | 0(0.0) | |
Adenosquamous carcinoma | 2(0.6) | 2(1.2) | 0(0.0) | |
Other | 23(6.8) | 13(7.7) | 10(6.0) | |
Comorbid conditions | ||||
No | 159(47.2) | 67(39.4) | 92(55.1) | 0.005 |
Any comorbid condition | 178(52.8) | 103(60.6) | 75(44.9) | |
Comorbidities | ||||
Tuberculosis (Active + old) | 54(16.0) | 38(22.4) | 16(9.6) | 0.002 |
Pneumoconiosis | 5(1.5) | 5(2.9) | 0(0.0) | 0.061 |
Heart disease | 19(5.6) | 11(6.5) | 8(4.8) | 0.638 |
Diabetes mellitus | 60(17.8) | 33 (19.4) | 27 (16.2) | 0.478 |
Hypertension | 78(23.2) | 48(28.2) | 30(18.0) | 0.028 |
Others | 76(22.6) | 45(26.5) | 31(18.6) | 0.049 |
FEV1 level | ||||
GOLD grade1 | 129(38.3) | 35(20.6) | 94(56.3) | 1.200E-11 |
GOLD grade2 | 171(50.7) | 103(60.6) | 68(40.7) | |
GOLD grade3 | 28(8.3) | 24(14.1) | 4(2.4) | |
GOLD grade4 | 9(2.7) | 8(4.7) | 1(0.6) | |