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Table 3 Descriptive characteristics for the frailty index stratfied by type of surgery

From: Frailty index and its association with the onset of postoperative delirium in older adults undergoing elective surgery

 

Study population

Cardiac surgery

Orthopedic/other surgery

Overall

Female

Male

Overall

Female

Male

Overall

Female

Male

n = 701

n = 334

n = 367

n = 296

n = 93

n = 203

n = 405

n = 241

n = 164

Mean

0.27

0.29

0.26

0.25

0.27

0.24

0.29

0.30

0.28

Standard deviation

0.11

0.11

0.10

0.10

0.10

0.10

0.11

0.11

0.11

Minimum

0.06

0.06

0.07

0.06

0.06

0.07

0.06

0.06

0.07

1. Quartile

0.20

0.21

0.18

0.18

0.19

0.17

0.21

0.21

0.21

Median

0.27

0.28

0.25

0.23

0.26

0.22

0.28

0.30

0.28

3. Quartile

0.34

0.37

0.32

0.30

0.33

0.28

0.36

0.38

0.36

Maximum

0.65

0.57

0.65

0.55

0.55

0.51

0.65

0.57

0.65

Frail (FI ≥ 0.2), n (%)

528 (75.3)

267 (79.9)

261 (71.1)

202 (68.2)

70 (75.3)

132 (65.0)

326 (80.5)

197 (81.7)

129 (78.7)

Non-frail (FI < 0.2), n (%)

173 (24.7)

67 (20.1)

106 (28.9)

94(31.8)

23 (24.7)

71 (35.0)

79 (19.5)

44 (18.3)

35 (21.3)

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BMC Geriatrics

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