Table 5

Comparison of costs and cost-efficiency between dependency groups separated by diagnostic condition

ParameterLow dependency (admission NPDS <10)Medium dependency (admission NPDS 10–24)High dependency (admission NPDS ≥25)One-way ANOVA
Mean95% CIMean95% CIMean95% CIFp Value
ABIN=339N=872N=2113
Cost of rehabilitation episode£27 360£24 300 to £30 305£30 591£28 842 to £32 292£49 986£48 637 to £51 406166.3<0.001
Reduction in weekly care costs£152£91 to £215£463£419 to £506£760£721 to £799102.9<0.001
Time to offset costs (months)28.813.1 to 46.325.617.0 to 36.915.09.6 to 20.62.90.06
FIM efficiency0.380.34 to 0.420.560.53 to 0.590.400.38 to 0.4234.7<0.001
SCIN=58N=169N=210
Cost of rehabilitation episode£18 198£15 179 to £21 647£28 204£24 812 to £31 442£43 897£39 825 to £48 33330.9<0.001
Reduction in weekly care costs£45£95 to £177£407£407 to £511£847£772 to £97330.7<0.001
Time to offset costs (months)20.8£9 to £5818.79.7 to 27.522.710.4 to 37.20.100.91
FIM efficiency0.370.28 to 0.460.550.46 to 0.630.360.31 to 0.418.4<0.001
Peripheral conditionsN=29N=87N=144
Cost of rehabilitation episode£20 814£16 539 to £26 180£29 491£24 338 to £35 255£45 339£40 021 to £51 05411.9<0.001
Reduction in weekly care costs£227£79 to £409£405£260 to £555£1207£1049 to £1372,32.1<0.001
Time to offset costs (months)42.711.0 to 70.817.812.1 to 24.616.12.9 to 28.81.90.154
FIM efficiency0.510.33 to 0.710.560.46 to 0.650.540.46 to 0.630.10.889
Progressive conditionsN=72N=210N=344
Cost of rehabilitation episode£14 118£11 828 to £16 643£19 476£17 140 to £21 975£31 991£29 269 to £34 77333.8<0.001
Reduction in weekly care costs£54£30 to £142£182£94 to £266£520£427 to £ 61619.3<0.001
Time to offset costs (months)21.67.4 to 36.913.36.9 to 20.32.8−7.4 to 12.92.30.096
FIM efficiency0.310.24 to 0.390.430.36 to 0.510.200.17 to 0.2321.5<0.001
  • ABI, acquired brain injury; ANOVA, analysis of variance; FIM, Functional Independence Measure; NPDS, Northwick Park Dependency Score; SCI, spinal cord injury.