Table 3 (a) Hazard ratios of the risk factors associated with death from cause-specific hazard model based on multivariate Cox’s model, (b) subdistribution hazard ratio of the risk factors associated with the first reoperation, and (c) readmission based on multivariate Fine and Gray’s (subdistribution hazard ratio, sub-HR) model from competing risk analysis

Age

Year

1.015

(1.012–1.019)

<0.001

0.98

(0.95–0.99)

0.041

1.02

(1.01–1.03)

0.003

Gender

Female

(REF)

(REF)

(REF)

Male

1.31

(1.26–1.37)

<0.001

0.92

(0.82–1.04)

0.182

1.71

(1.59–1.84)

<0.001

Fracture

Cervical

(REF)

(REF)

(REF)

Trochanteric

1.14

(1.06–1.23)

<0.001

0.72

(0.59–0.89)

0.002

1.08

(0.95–1.22)

0.257

Operation

Fixation

(REF)

(REF)

(REF)

Hemiarthroplasty

1.03

(0.96–1.11)

0.371

0.96

(0.78–1.18)

0.665

1.00

(0.88–1.14)

0.998

CCI^a

0

(REF)

(REF)

(REF)

1

1.12

(1.06–1.18)

<0.001

0.94

(0.82–1.08)

0.383

2.63

(2.37–2.91)

<0.001

2

1.20

(1.13–1.28)

<0.001

0.97

(0.82–1.14)

0.698

3.02

(2.71–3.37)

<0.001

3

1.30

(1.20–1.40)

<0.001

1.06

(0.87–1.29)

0.570

3.39

(2.99–3.85)

<0.001

4

1.55

(1.45–1.66)

<0.001

0.80

(0.65–0.97)

0.025

3.60

(3.15–4.13)

<0.001