Table 1.
Characteristics of participants within the calibration and validation data sets.
| Calibration data set (n = 130) | Validation data set (n = 65) | |
|---|---|---|
| Age | 84 (66–108) | 82 (66–98) |
| Sex (% male) | 37 (29%) | 24 (37%) |
| Admission Hb (g.L−1) | 116.5 (17.8) | 121.3 (15.8) |
| Admission MMTS ⩽ 6 | 44 (34%) | 19 (29%) |
| Presence of CAD | 47 (36%) | 26 (20%) |
| Abnormal CXR findings | 28 (22%) | 13 (10%) |
| Presence of renal disease | 16 (12%) | 11 (9%) |
| Living in institution | 47 (36%) | 20 (15%) |
| Death within 30 days | 16 (12%) | 3 (5%) |
| Death at 6 months | 30 (23%) | 18 (28%) |
| Death at 12 months | 41 (32%) | 20 (31%) |
| Death at follow-up | 68 (52%) | 31 (48%) |
| Months to follow-up | 33 (0–62) | 34 (0–54) |
| NHFS | 5 (3–8) | 5 (3–8) |
| AACCI | 5 (2–16) | 5 (2–20) |
| POSSUM | 40 (30–66) | 40 (31–63) |
Hb: admission haemoglobin (g.L−1); MMTS: mini-mental test score (out of 10); CAD: coronary artery disease; CXR: chest x-ray; NHFS: Nottingham Hip Fracture Score; AACC: Age-Adjusted Charlson Comorbidity Index; POSSUM: Physiological and Operative Severity Score for enUmeration of Mortality. Values are mean (SD), median (IQR (range)) or number (proportion).