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Table 1 Basic characteristics and factors predicting four-month mortality and maintainability among hip fracture patients in Finland, years 1998-2001

From: Modeling the volume-effectiveness relationship in the case of hip fracture treatment in Finland

  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
  1. OR = Odds Ratio, CI = Confidence Interval
  2. * Among hip fracture patients aged 65 years and older who lived at home at the time of fracture
  3. ** Odds ratio per ten years increase in age