Table 1 Characteristics of patients in the inpatient surgery and two-day surgery groups

Sex

  Male

285

39.7

79

36.1

0.329

69

31.7

78

35.8

0.362

  Female

432

60.3

140

63.9

149

68.3

140

64.2

Age, y

  ≤ 30

19

2.6

15

6.8

 < 0.001

11

5.0

14

6.4

0.071

  > 30, ≤ 49

166

23.2

74

33.8

74

33.9

74

33.9

  > 50, ≤ 70

438

61.1

123

56.2

113

51.8

123

56.4

  > 70

94

13.1

7

3.2

20

9.2

7

3.2

Operative procedures

  Wedge

129

18.0

64

29.2

 < 0.001

76

34.9

63

28.9

0.355

  Segmentectomy

236

32.9

91

41.6

79

36.2

91

41.7

  Lobectomy

352

49.1

64

29.2

63

28.9

64

29.4

Neoplasm

  Benign

67

9.3

15

6.8

0.004

20

9.2

15

6.9

0.073

  Preinvasive

40

5.6

26

11.9

13

6.0

26

11.9

  Malignant

610

85.1

178

81.3

185

84.9

177

81.2