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Table 1 Selected Baseline Characteristics of the Study Participants

From: Current lung cancer screening guidelines may miss high-risk population: a real-world study

Parameter

Male, n (%)

Female, n (%)

Total, n (%)

Total

9801 (61.3)

6195 (38.7)

15,996 (100.0)

Age at inclusion (years)a

51.26 ± 14.76

48.80 ± 14.76

50.31 ± 14.81

< 30

545 (5.56)

586 (9.5)

1131 (7.0)

30~

1361 (13.9)

872 (14.1)

2233 (14.0)

40~

3119 (31.8)

2224 (35.9)

5343 (33.4)

50~

2363 (24.1)

1196 (19.3)

3559 (22.2)

60~

1033 (10.5)

605 (9.8)

1638 (10.2)

70~

832 (8.5)

475 (7.7)

1307 (8.2)

≥80

548 (5.6)

237 (3.8)

785 (5.0)

Smoking status

 smoking

4697 (47.9)

52 (0.8)

4749 (29.7)

 non-smoking

5104 (52.1)

6143 (99.2)

11,247 (70.3)

 Smoking volume (pack year)a

19.24 ± 14.84

13.95 ± 25.04

19.20 ± 14.93

 < 10

894 (19.0)

13 (25.0)

907 (19.1)

 10~

1080 (23.0)

8 (15.4)

1088 (23.0)

 20~

841 (17.9)

1 (1.9)

842 (17.7)

 30~

488 (10.4)

1 (1.9)

489 (10.3)

 40~

225 (4.8)

0 (0)

225 (4.7)

 50~

45 (1.0)

0 (0)

45 (0.9)

 ≥60

100 (2.1)

1 (1.9)

101 (2.1)

 Unknown

1024 (21.8)

28 (53.8)

1052 (22.2)

Family history of lung cancer

 Yes

163 (87.2)

181 (84.6)

401 (2.5)

 No

24 (12.8)

33 (15.4)

15,595 (97.5)

Chronic lung diseaseb

 Yes

5868 (59.9)

3450 (55.7)

9318 (58.3)

 No

3933 (40.1)

2745 (44.3)

6678 (41.7)

  1. a Values are presented as mean ± SD (range). b Chronic lung diseases include the chronic obstructive pulmonary disease, diffuse pulmonary fibrosis, history of pulmonary tuberculosis and other respiratory diseases