|  | Japan | Korea | Taiwan | |||
---|---|---|---|---|---|---|---|
 |  | n (mean) | % (SD) | n (mean) | % (SD) | n (mean) | % (SD) |
Total | Â | 61,662 | Â | 23,226 | Â | 15,235 | Â |
Sex | Male | 13,172 | 21.36 | 6254 | 26.93 | 5418 | 35.56 |
 | Female | 48,490 | 78.64 | 16,972 | 73.07 | 9817 | 64.44 |
Age | mean (SD) | 82.82 | 9.24 | 78.71 | 9.41 | 78.25 | 10.50 |
 | 50–64 | 2971 | 4.82 | 2197 | 9.46 | 1915 | 12.57 |
 | 65–74 | 7548 | 12.24 | 3949 | 17.00 | 2822 | 18.52 |
 | 75–84 | 20,587 | 33.39 | 10,577 | 45.54 | 5663 | 37.17 |
 | 85 + | 30,556 | 49.55 | 6503 | 28.00 | 4835 | 31.74 |
Household income level | Q1 | Â | Â | 5627 | 24.63 | 189 | 1.24 |
 | Q2 |  |  | 5827 | 25.51 | 5472 | 35.92 |
 | Q3 |  |  | 5195 | 22.74 | 5779 | 37.93 |
 | Q4 |  |  | 6195 | 27.12 | 3795 | 24.91 |
Comorbidity | Â | Â | Â | Â | Â | Â | Â |
Charlson index | mean (SD) | 1.00 | 1.31 | 0.75 | 0.99 | 0.94 | 1.55 |
 | 0 | 36,332 | 58.92 | 11,634 | 50.09 | 8526 | 55.96 |
 | 1 | 4596 | 7.45 | 7740 | 33.32 | 3136 | 20.58 |
 | 2 | 15,632 | 25.35 | 2664 | 11.47 | 1861 | 12.22 |
 | 3 | 2054 | 3.33 | 806 | 3.47 | 868 | 5.70 |
 | 4+ | 3048 | 4.94 | 382 | 1.64 | 844 | 5.54 |
Comorbid diseases | Hypertension | 23,497 | 38.11 | 7418 | 31.94 | 7554 | 49.58 |
 | Coronary artery disease | 5260 | 8.53 | 1215 | 5.23 | 748 | 4.91 |
 | Diabetes mellitus | 11,561 | 18.75 | 5007 | 21.56 | 4099 | 26.91 |
 | Dementia | 11,499 | 18.65 | 1847 | 7.95 | 872 | 5.72 |
 | Stroke | 6787 | 11.01 | 1651 | 7.11 | 818 | 5.37 |
Surgical intervention/ Procedure | Internal fixation | 40,406 | 65.53 | 12,322 | 53.05 | 7476 | 49.07 |
Hemiarthroplasty | 20,587 | 33.39 | 9911 | 42.67 | 7706 | 50.58 | |
Total hip arthroplasty | 669 | 1.08 | 993 | 4.28 | 53 | 0.35 | |
Age- and sex-adjusted length of stay | mean (SD) | 32.5 | 18.7 | 24.7 | 12.4 | 7.1 | 2.9 |
Age- and sex-adjusted total cost per persona | mean (SD) | 14,808.0 | 5365.6 | 7836.7 | 2924.3 | 3771.2 | 1239.5 |
Age- and sex-adjusted average cost per person per daya | mean (SD) | 522.8 | 175.1 | 362.6 | 161.1 | 581.3 | 230.0 |
Inpatient mortality | n (%) | 644 | 1.04 | 190 | 0.82 | 88 | 0.58 |