Variables and coefficients in the parsimonious model (model 5) for allocating funds to general practices in England for commissioning hospital care; predicting costs for 2007-8 using data from 2005-6 and 2006-7
| Variable name | Coefficient* | Standard error |
|---|---|---|
| Individual-level | ||
| Age and sex† | — | — |
| 157 ICD-10 groups (diagnoses variables)‡ | — | — |
| Attributed needs | ||
| Persons in social rented housing | 0.35 | 0.08 |
| All disability allowance claimants | 422.42 | 72.33 |
| People aged 16–74 years with no qualifications (age standardised) | 23.97 | 4.66 |
| Mature city professionals | −28.25 | 8.139 |
| Proportion of students in population | −1571.83 | 141.19 |
| If person had a privately funded inpatient episode of care provided by NHS (2004–6) | −555.74 | 23.09 |
| Asthma prevalence (2006) | 3.17 | 0.83 |
| Attributed supply | ||
| Quality of stroke care (primary and secondary care) by weighted population (2005) | −0.74 | 0.17 |
| Accessibility to magnetic resonance imaging | 7781.37 | 1625.73 |
| Catchment population of hospital trust that supplied practice with largest number of inpatient admissions (2006-7) | −0.0000354 | 0.00001 |
*Coefficients are unstandardised, so they are dependent on the units of measurement; hence the large values for some variables, which do not necessarily reflect their strength in predicting future costs. All coefficients are significant at P<0.01.
†The results for a total of 38 separate age and sex groups are shown in web extra table A on bmj.com.
‡The results for a total of 157 separate ICD-10 groups are shown in web extra table B on bmj.com.