Table 2 Results of cause-specific hazard model performed with the variables that had a p-value < 0.1 in univariate analysis

Highest surgical experience

0.85 (0.48–1.51)

0.91 (0.64–1.30)

Junior

ASA score

0.63 (0.36–1.11)

2.32 (1.55–3.47)

1 + 2

Sex

1.20 (0.63–2.28)

1.51 (1.05–2.18)

Female

Residence

Home

    Nursing home

1.59 (0.75–3.36)

1.71 (1.10–2.66)

    Other^a

2.07 (0.98–4.36)

1.28 (0.78–2.10)

Age

 > 79 years

    50–69 years

0.68 (0.09–5.11)

0.77 (0.31–1.91)

    70–79 years

0.82 (0.41–1.65)

0.59 (0.38–0.94)

Dementia

0.46 (0.23–0.89)

0.80 (0.53–1.21)

Yes

Stem size

1.10 (0.95–1.28)

1.07 (0.98–1.17)

Continues