Table 2 Logistic regression analysis of independent variables according to 30-day readmission status (n=266)

 ≤ 70 years

113 (62.1)

69 (37.9)

 > 70 years

53 (63.1)

56 (40.9)

0.987 (0.834–1.167)

0.875

 Male

85 (65.9)

44 (34.1)

 Female

81 (59.1)

56 (40.9)

1.114 (0.925-1.343)

0.255

 1-14

126 (67.3)

71 (36)

 >14

40 (58)

29 (42)

1.069 (0.919–1.244)

0.377

 Fit or prefail

105 (67.3)

51 (32.7)

 Frail

61 (55.5)

49 (44.5)

1.214 (0.994–1.483)

0.049*

 Independent

76 (73.1)

28 (26.9)

 Dependent

90 (55.6)

72 (44.4)

1.315(1.098–1.576)

0.004*

 Normal

74 (78.7)

20 (21.3)

 At risk for malnutrition or malnutrition

92 (53.5)

80 (46.5)

1.472 (1.236–1.752)

<0.001*

 Normal

129 (64)

67 (34.2)

 Cognitive problem

37 (52.9)

33 (47.1)

1.245 (0.976–1.588)

0.055*

 Normal

124 (70.1)

53 (29.9)

 Strong probability or depression

42 (47.2)

47 (52.8)

1.485 (1.168–1.887)

<0.001*

 <5 (not severe)

42 (59.2)

29 (40.8)

 >5 (severe)

124 (63.6)

71 (36.4)

0.930 (0.746–1.160)

0.509

 No

64 (61)

41 (39)

 Yes

102 (63.4)

59 (36.6)

0.962 (0.793–1.167)

0.693

 No burden

29 (56.9)

22 (43.1)

 With burden

137 (63.7)

78 (36.3)

1.189 (0.828–1.707)

0.363

 Mild to moderate

93 (63.3)

54 (36.7)

 Severe

73 (61.3)

46 (38.7)

1.031(0.854–1.245)

0.748

 No

137 (66.8)

68 (33.2)

 Yes

29 (47.5)

32 (52.5)

1.406 (1.062–1.861)

0.006*

 No

103 (69.1)

46 (30.9)

 Yes

63 (52.9)

56 (47.1)

1.284 (1.052–1.567)

0.011*