Table 1 Characteristics of the study population before and after propensity score matching
Variables | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
Before C-DRG (n = 2137) | After C-DRG (n = 1137) | pa | Before C-DRG (n = 1123) | After C-DRG (n = 1123) | pa | |
Age years, mean (SD) | 78.93(8.12) | 79.33(8.06) | 0.204 | 79.02(7.95) | 79.33(8.06) | 0.408 |
bGender, n (%) | Â | Â | 0.007 | Â | Â | 1.000 |
  Male | 799 (37.4) | 371 (32.6) |  | 357(31.8) | 357(31.8) |  |
  Female | 1338 (62.6) | 766 (67.4) |  | 766(68.2) | 766(68.2) |  |
bInsurance type, n (%) |  |  |  < 0.001 |  |  | 1.000 |
  URRBMI | 1884 (88.2) | 916 (80.6) |  | 916(81.6) | 916(81.6) |  |
  UEBMI | 253 (11.8) | 221 (19.4) |  | 207(18.4) | 207(18.4) |  |
bFracture location, n (%) |  |  |  < 0.001 |  |  | 1.000 |
  Femoral neck | 1182 (55.3) | 497 (43.7) |  | 497(44.3) | 497(44.3) |  |
  Trochanteric region | 955 (44.7) | 640 (56.3) |  | 626(55.7) | 626(55.7) |  |
bTreatment methods, n (%) |  |  |  < 0.001 |  |  | 1.000 |
  HR/IF | 1572(73.6) | 925 (81.4) |  | 911(81.1) | 911(81.1) |  |
  Other treatments | 565 (26.4) | 212 (18.6) |  | 212(18.9) | 212(18.9) |  |
Charlson Comorbidity Index,n(%) | Â | Â | 0.412 | Â | Â | 0.951 |
  < 3 | 1860 (87.0) | 978 (86.0) |  | 968(86.2) | 967(86.1) |  |
  ≥ 3 | 277 (13.0) | 159 (14.0) |  | 155(13.8) | 156(13.9) |  |
Hospital level, n (%) | Â | Â | 0.920 | Â | Â | 0.307 |
  Tertiary hospital | 524 (24.5) | 277 (24.4) |  | 293(26.1) | 272(24.2) |  |
  Secondary hospital | 1613(75.5) | 860 (75.6) |  | 830(73.9) | 851(75.8) |  |
Hospital type, n (%) | Â | Â | 0.406 | Â | Â | 0.675 |
  General hospital | 1682(78.7) | 909 (79.9) |  | 890(79.3) | 898(80.0) |  |
  TCM hospital | 455 (21.3) | 228 (20.1) |  | 233(20.7) | 225(20.0) |  |