Table 4.

Estimates of rate ratios (RR) from multi-level regression (Poisson) model for the association between introduction of named GP and the number of emergency hospital admissions, England 2012 to 2016 (38 500 observations)

	Unadjusted model			Adjusted model 1*			Adjusted model 2
	RR	P value	95% CI	RR	P value	95% CI	RR	P value	95% CI
Period (ref.=pre)	1.249	<0.001	1.170 to 1.332	1.178	<0.001	1.103 to 1.259	1.171	<0.001	1.097 to 1.250
Age (ref.=75-)	1.821	<0.001	1.687 to 1956	1.571	<0.001	1.462 to 1.690	1.372	<0.001	1.280 to 1.470
Period* Age	1.146	0.001	1.055 to 1.245	1.143	0.001	1.052 to 1.242	1.120	0.007	1.031 to 1.215

*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, see online supplementary table 4.

†Included also standardised covariates: number of GP consultations (quartiles) and continuity of care (Bice & Boxerman index-score, quartiles).

GP, general practitioner.