Table 1.
Basic characteristics and factors predicting four-month mortality and maintainability among hip fracture patients in Finland, years 1998-2001
| All hip fracture patients % |
Four-month mortality OR (95% CI) |
Four-month unsuccessful maintainability OR (95% CI) |
Patients in rehabilitation units* % |
Four-month mortality OR (95% CI) |
Four-month unsuccessful maintainability OR (95% CI) |
|
|---|---|---|---|---|---|---|
| Number of observations | 22,857 | 22,857 | 22,857 | 10,384 | 10,384 | 10,384 |
| Number of events | 4,299 | 9,991 | 1,714 | 4,833 | ||
| Demographic variables | ||||||
| Age** (mean) | 77.4 | 1.91 (1.83 to 2.00) | 1.21 (1.19 to 1.24) | 81.1 | 2.04 (1.87 to 2.22) | 1.27 (1.20 to 1.35) |
| Men | 29.7 | 2.11 (1.95 to 2.28) | 1.50 (1.41 to 1.60) | 24.6 | 1.97 (1.74 to 2.22) | 1.52 (1.39 to 1.67) |
| Type of fracture | ||||||
| Neck of femur | 63.2 | 1 | 1 | 62.1 | 1 | 1 |
| Trochanteric | 30.0 | 1.01 (0.94 to 1.09) | 0.93 (0.87 to 0.98) | 31.3 | 1.00 (0.89 to 1.13) | 0.89 (0.82 to 0.97) |
| Subtrochanteric | 6.8 | 1.12 (0.97 to 1.30) | 1.03 (0.92 to 1.15) | 6.8 | 1.07 (0.86 to 1.33) | 0.90 (0.76 to 1.05) |
| Care history | ||||||
| Long-term care patient | 17.8 | 1.02 (0.93 to 1.12) | 0.60 (0.55 to 0.65) | - | - | - |
| Recent short-term care | 23.6 | 1 | 1 | 13.3 | 1 | 1 |
| No recent care | 58.6 | 0.46 (0.43 to 0.50) | 0.54 (0.51 to 0.58) | 86.7 | 0.40 (0.35 to 0.46) | 0.58 (0.51 to 0.65) |
| Comorbid conditions | ||||||
| Cancer | 11.3 | 1.68 (1.53 to 1.86) | 1.46 (1.34 to 1.59) | 12.2 | 1.77 (1.53 to 2.05) | 1.47 (1.30 to 1.66) |
| Diabetes | 10.1 | 1.33 (1.19 to 1.48) | 1.40 (1.28 to 1.53) | 10.6 | 1.25 (1.06 to 1.48) | 1.40 (1.23 to 1.60) |
| Parkinson's disease | 2.9 | 1.14 (0.95 to 1.38) | 1.30 (1.11 to 1.53) | 3.0 | 1.22 (0.90 to 1.65) | 1.55 (1.23 to 1.97) |
| Cardiovascular disease | 34.2 | 1.50 (1.39 to 1.61) | 1.38 (1.30 to 1.47) | 36.9 | 1.32 (1.18 to 1.48) | 1.28 (1.17 to 1.39) |
| Cerebrovascular disease | 18.9 | 1.14 (1.05 to 1.24) | 1.15 (1.07 to 1.23) | 18.2 | 1.24 (1.08 to 1.41) | 1.22 (1.10 to 1.36) |
| Peripheral vascular disease | 4.5 | 1.20 (1.04 to 1.40) | 1.28 (1.12 to 1.46) | 4.9 | 1.56 (1.25 to 1.95) | 1.55 (1.28 to 1.87) |
| Chronic pulmonary disease | 8.5 | 1.24 (1.11 to 1.39) | 1.30 (1.18 to 1.44) | 9.3 | 1.27 (1.06 to 1.51) | 1.32 (1.15 to 1.52) |
| Peptic ulcer disease | 3.7 | 1.08 (0.91 to 1.28) | 1.25 (1.08 to 1.44) | 4.0 | 1.17 (0.90 to 1.52) | 1.28 (1.04 to 1.56) |
| Renal disease | 0.9 | 2.05 (1.52 to 2.76) | 1.98 (1.47 to 2.67) | 0.9 | 1.83 (1.15 to 2.91) | 1.84 (1.18 to 2.86) |
| Rheumatologic disease | 5.3 | 0.96 (0.81 to 1.13) | 1.21 (1.07 to 1.36) | 6.1 | 0.99 (0.78 to 1.25) | 1.34 (1.14 to 1.59) |
| C-statistics | 0.74 | 0.65 | 0.71 | 0.63 | ||
OR = Odds Ratio, CI = Confidence Interval
* Among hip fracture patients aged 65 years and older who lived at home at the time of fracture
** Odds ratio per ten years increase in age