Table 2

Coefficients of determination (R2) for the case-mix based models to predict the health cost per patient
Demographic variables only ACG-PM CRG DCG-HCC
Out of the box Variables:
A&S + dx + rx + cost percentiles (age < 65) 0,167
A&S + dx + rx + cost percentiles (age 65+) 0,164
A&S + dx 0,135
A&S + dx + cost 0,181
A&S + dx + rx + cost 0,208
Recalibration Variables
Age and Sex (A&S): 0,071
A&S + Only Dx 0,182 0,181 0,213
A&S + Only Rx 0,165 - 0,178
A&S + Dx + Rx 0,211 - 0,236
A&S + Dx + Rx + cost percentile 0,231 0.218* 0,246
A&S + Dx + Rx + cost 0,260 0.254* 0,269
A&S + Dx + Rx + cost + DI 0,260 0.254* 0,269

*The CRG models do not include prescriptions.

Age groups: 14–17; 18–34; 35–44; 45–54; 55–64; 65–69; 70–74; 75–79; 80–84; 85 + .

Cost groups in percentiles: 0–1; 2–10; 11–25; 26–50; 51–75; 76–90; 91–93; 94–95; 96–97; 98 + .

Dx diagnoses, Rx prescriptions, DI Deprivation index.

Orueta et al.

Orueta et al. BMC Health Services Research 2013 13:269   doi:10.1186/1472-6963-13-269

Open Data