Table 8.
Comparison of training and testing datasets – patient characteristics
| Characteristics Median [IQR] Number (proportion %) |
Training set (N = 1880) |
Testing set (N = 968) |
|---|---|---|
| Age, years | 82.9 [75.5 to 88.3] |
83.7 [76.8 to 88.6] |
| Male | 534 (28.4) |
242 (25.0) |
| Number (%) with known baseline SCr | 1352 (71.9) |
692 (71.5) |
| Baseline eGFR mls/min/1.73 m2 | 63 [50 to 78] |
61 [48 to 75] |
| CKD stage > =3 | 583 (43.1) |
318 (46.0) |
| Diabetes | 261 (13.9) |
132 (13.6) |
| Previous Stroke or TIA | 234 (12.4) |
131 (13.5) |
| Cardiovascular disease | 1011 (53.8) |
540 (55.8) |
| Greater than one defined co-morbidity | 629 (33.5) |
330 (34.1) |
| Admission AMTS <7 | 619 (32.9) |
368 (38.0) |
| Admission haemoglobin < 100 g L-1 | 538 (28.6) |
314 (32.4) |
| Not admitted from home | 363 (19.3) |
209 (21.6) |
| Nottingham Hip Fracture Score | 4 [3–6] |
5 [4–6] |
| Nottingham Hip Fracture Score > = 4 | 1389 (73.9) |
738 (76.2) |
| Nottingham Hip Fracture Score > = 5 | 908 (48.3) |
513 (53.0) |