Table 2 Imbalance of patient characteristics before and after propensity score matching in the assessment of delirium

69.46 (11.77)

73.12 (9.80)

0.338

 > 0.1

71.56 (11.38)

71.54 (9.58)

0.002

< 0.1

116.61 (15.63)

117.41 (16.35)

0.05

 < 0.1

117.03 (15.40)

117.40 (16.22)

0.023

< 0.1

63.14 (10.99)

60.91 (10.59)

0.207

 > 0.1

62.22 (10.69)

62.15 (10.78)

0.006

< 0.1

87.74 (16.36)

84.37 (14.75)

0.216

 > 0.1

86.22 (15.95)

85.90 (15.38)

0.021

< 0.1

96.16 (2.34)

96.18 (2.20)

0.008

 < 0.1

96.15 (2.35)

96.18 (2.15)

0.009

< 0.1

55 (4.4)

59 (4.0)

0.023

 < 0.1

45 ( 4.7)

47 (4.9)

0.01

< 0.1

117 (9.4)

339 (22.8)

0.371

 > 0.1

111 (11.6)

119 (12.5)

0.026

< 0.1

219 (17.6)

95 ( 6.4)

0.351

 > 0.1

85 (8.9)

87 (9.1)

0.007

< 0.1

255 (20.5)

191 (12.9)

0.207

 > 0.1

165 (17.3)

155 (16.2)

0.028

< 0.1

225.28 (114.45)

227.34 (99.49)

0.019

 < 0.1

229.06 (108.70)

230.91 (105.12)

0.017

< 0.1

11.46 (2.26)

11.26 (2.10)

0.094

 < 0.1

11.38 (2.22)

11.42 (2.13)

0.018

< 0.1

8.58 (0.81)

8.64 (0.69)

0.076

 < 0.1

8.62 (0.80)

8.61 (0.69)

0.012

< 0.1

139.55 (5.27)

139.73 (4.64)

0.036

 < 0.1

139.70 (4.87)

139.72 (4.60)

0.005

< 0.1

169.56 (96.72)

177.37 (104.89)

0.077

 < 0.1

170.52 (100.27)

172.39 (92.73)

0.019

< 0.1

483 (38.9)

485 (32.7)

0.13

 > 0.1

355 (37.2)

355 (37.2)

< 0.001

< 0.1

1073 (86.5)

1207 (81.3)

0.14

 > 0.1

802 (84.0)

804 (84.2)

0.006

< 0.1

238 (19.2)

337 (22.7)

0.087

 < 0.1

202 (21.2)

188 (19.7)

0.036

< 0.1

56 (4.5)

74 (5.0)

0.022

 < 0.1

47 (4.9)

40 (4.2)

0.035

< 0.1

114 (9.2)

170 (11.5)

0.075

 < 0.1

102 (10.7)

88 (9.2)

0.049

< 0.1

122 (9.8)

294 (19.8)

0.284

 > 0.1

117 (12.3)

124 (13.0)

0.022

< 0.1

40.39 (14.03)

39.28 (11.58)

0.087

 < 0.1

39.81 (13.40)

39.74 (12.17)

0.006

< 0.1

35.51 (9.39)

33.29 (8.46)

0.249

 > 0.1

34.47 (9.08)

34.47 (8.60)

< 0.001

< 0.1

6.01 (6.45)

5.10 (5.45)

0.152

 > 0.1

5.51 (5.99)

5.55 (6.16)

0.006

< 0.1