Table 7 Associations between frailty, other variables and postoperative complications

Frailty (vs No)

5.76 (4.62, 7.18)

< 0.001

3.29 (2.55, 4.25)

< 0.001

  46–64

1.49 (1.38, 1.60)

< 0.001

1.18 (1.08, 1.29)

< 0.001

  ≥ 65

2.82 (2.54, 3.14)

< 0.001

1.79 (1.57, 2.05)

< 0.001

  Male

0.98 (0.91, 1.06)

0.625

  Black

0.82 (0.74, 0.92)

< 0.001

0.88 (0.77, 0.99)

0.039

  Hispanic

0.87 (0.75, 1.01)

0.063

0.96 (0.83, 1.12)

0.640

  Asian or Pacific Islander

1.26 (1.01, 1.57)

0.039

1.24 (0.97, 1.59)

0.083

  Other

0.92 (0.78, 1.09)

0.334

0.92 (0.77, 1.09)

0.328

  Quartile 2

1.07 (0.97, 1.18)

0.183

  Quartile 3

1.00 (0.91, 1.10)

0.961

  Quartile 4

1.14 (1.01, 1.28)

0.028

 aSAH severity

1.30 (1.28, 1.32)

< 0.001

1.27 (1.25, 1.30)

< 0.001

 Treatment (vs Coiling)

 Microsurgical clipping

0.83 (0.76, 0.91)

< 0.001

0.89 (0.80, 0.98)

0.015

 Cerebral herniation

3.51 (2.69, 4.56)

< 0.001

1.29 (0.97, 1.72)

0.076

 Cerebral edema

3.12 (2.66, 3.65)

< 0.001

1.93 (1.63, 2.28)

< 0.001

 Diabetes

1.65 (1.45, 1.86)

< 0.001

1.24 (1.06, 1.44)

0.006

 Hypertension

1.53 (1.42, 1.66)

< 0.001

1.36 (1.24, 1.49)

< 0.001

 Peripheral vascular disorders

2.04 (1.73, 2.41)

< 0.001

2.08 (1.64, 2.63)

< 0.001

 Vasospasm

1.77 (1.30, 2.40)

< 0.001

0.91 (0.58, 1.41)

0.663

  Medium

0.60 (0.44, 0.81)

< 0.001

0.55 (0.43, 0.71)

< 0.001

  Large

0.72 (0.54, 0.95)

0.02

0.69 (0.55, 0.87)

0.001

  Urban

0.95 (0.83, 1.08)

0.396

  Teaching

0.86 (0.75, 0.98)

0.027

0.79 (0.68, 0.91)

0.001