Unadjusted model | Adjusted model 1* | Adjusted model 2† | |||||||
OR | P value | 95% CI | OR | P value | 95% CI | OR | P value | 95% CI | |
Period (ref.=pre) | 1.206 | <0.001 | 1.111 to 1.309 | 1.156 | 0.001 | 1.064 to 1.257 | 1.137 | 0.007 | 1.035 to 1.254 |
Age (ref.=<75) | 1.887 | <0.001 | 1.736 to 2.048 | 1.594 | <0.001 | 1.464 to 1.735 | 1.680 | <0.001 | 1.530 to 1.846 |
Period* Age | 1.179 | 0.003 | 1.059 to 1.314 | 1.191 | 0.002 | 1.066 to 1.330 | 1.228 | 0.001 | 1.086 to 1.388 |
*Covariates set to average: gender, number of chronic conditions, level of deprivation (quintiles), number of GPs in practice (quartiles) and urban/rural practice location. For complete table with B-coefficients, see online supplementary table 3.
†Included also standardised covariates: number of GP consultations (quartiles) and continuity of care (Bice & Boxerman index-score, quartiles) till first emergency hospital admission or the end of the observation period when not admitted. Number of observations: 37 207.
GP, general practitioner.