|  | 7 days |  |  | 30 days |  |  | 180 days |  |  | 1 year |  |
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | cHR | (95% CI) | P | cHR | (95% CI) | P | cHR | (95% CI) | P | cHR | (95% CI) | P |
Fixation method (Ref: Uncemented) | ||||||||||||
 Cemented | 1.72 | 1.23–2.39 | 0.001 | 1.29 | 1.12–1.48 | < 0.001 | 1.12 | 1.04–1.20 | 0.003 | 1.08 | 1.02–1.15 | 0.007 |
Gender (Ref: Female) | ||||||||||||
 Male | 1.50 | 1.09–2.07 | 0.014 | 1.67 | 1.45–1.92 | < 0.001 | 1.73 | 1.61–1.86 | < 0.001 | 1.76 | 1.66–1.86 | < 0.001 |
Age group (Ref: 80–84 years) | ||||||||||||
 85–89 years | 1.68 | 1.15–2.44 | 0.007 | 1.48 | 1.26–1.74 | < 0.001 | 1.39 | 1.27–1.51 | < 0.001 | 1.30 | 1.22–1.39 | < 0.001 |
  ≥ 90 years | 2.02 | 1.33–3.08 | 0.001 | 2.23 | 1.87–2.66 | < 0.001 | 1.94 | 1.76–2.13 | < 0.001 | 1.82 | 1.69–1.96 | < 0.001 |
Insurance status (Ref: ≥US $840) | ||||||||||||
  < US $840 | 0.89 | 0.64–1.23 | 0.468 | 0.87 | 0.76–1.00 | 0.054 | 0.96 | 0.89–1.03 | 0.221 | 0.95 | 0.90–1.01 | 0.077 |
CCI score (Ref: CCI = 0) | ||||||||||||
 CCI ≥ 1 | 1.30 | 0.85–1.98 | 0.231 | 1.53 | 1.26–1.86 | < 0.001 | 1.62 | 1.46–1.79 | < 0.001 | 1.57 | 1.45–1.70 | < 0.001 |
Type of head (Ref: BHA) | ||||||||||||
 UHA | 1.28 | 0.93–1.11 | 0.133 | 1.06 | 0.92–1.22 | 0.416 | 1.04 | 0.96–1.11 | 0.364 | 1.07 | 1.01–1.13 | 0.034 |
Hospital type (Ref: Private) | ||||||||||||
 Public | 0.97 | 0.69–1.35 | 0.843 | 1.04 | 0.90–1.20 | 0.582 | 1.04 | 0.96–1.12 | 0.326 | 1.07 | 1.01–1.13 | 0.034 |
Hospital level (Ref: Medical centre) | ||||||||||||
 Non-medical centre | 1.01 | 0.71–1.43 | 0.964 | 1.10 | 0.95–1.29 | 0.214 | 1.13 | 1.05–1.23 | 0.003 | 1.11 | 1.04–1.18 | 0.002 |
Hospital volume (Ref: High) | ||||||||||||
 Low | 1.14 | 0.82–1.60 | 0.428 | 1.10 | 0.96–1.27 | 0.185 | 1.18 | 1.10–1.28 | < 0.001 | 1.15 | 1.09–1.23 | < 0.001 |
Surgeon volume (Ref: High) | ||||||||||||
 Low | 1.17 | 0.83–1.60 | 0.362 | 1.20 | 1.04–1.40 | 0.015 | 1.17 | 1.08–1.26 | < 0.001 | 1.20 | 1.13–1.27 | < 0.001 |