Table 1 Changes in diagnosis of lung cancer at our hospital from March to August 2017 to 2020

 Stage 0-IV

82

80

79

89

–

 Stage I-II

56

60

58

62

–

Age (mean ± SD)^b

69.4 ± 5.1

69.9 ± 7.1

69.1 ± 6.5

69.6 ± 8.9

NS

Sex

NS

 Male

37

39

40

42

 Female

19

21

18

20

Bronchoscopy

< 0.05

 Performed

49

48

47

4

 Not performed

7

12

11

58

Method for preoperative definitive diagnosis

< 0.05

 Sputum cytology

0

1

0

0

 Bronchoscopic examination

27

26

28

2

 CT-guided needle biopsy

1

0

1

0

 None

28

33

29

60

Rapid pathological examination during surgery among those without a preoperative definitive diagnosis

< 0.05

 Done

4

5

4

21

 Not done

24

28

25

39

Surgical procedure

NS

 Lobectomy

49

55

52

57

 Segmentectomy

6

4

5

4

 Partial resection

1

2

1

1

Histology

NS

 Adenocarcinoma

43

46

45

46

 Squamous cell carcinoma

12

12

12

14

 Others

1

2

1

2

Pathological stage

< 0.05

 IA

35

44

43

26

 IB

9

8

7

12

 IIA

7

6

5

16

 IIB

5

2

3

8

Number of days waiting to have surgery

24.1 ± 6.3

26.3 ± 5.6

24.5 ± 6.1

13.9 ± 4.5*

< 0.05

Total hospitalization period (hospitalization for tests plus hospitalization for surgery)

10.1 ± 4.2

11.1 ± 4.3

10.6 ± 3.9

8.0 ± 1.7*

< 0.05

Diagnostic unpredictability

4.2

4.6

4.1

4.0

< 0.05