Table 3.

Practice characteristics and association with hospital admission rates (correlations ⩾0.25 significant at P<0.05)

Practice characteristic	Summary values			Correlation with admissions
	Mean (SD)	Range		Total	Emergency	Asthma	Diabetes
% of female general practice principals	37.6 (7.8)	19-53		−0.41	−0.31	−0.25	−0.28
Average No of patients per principal	2156 (1280)	1815-2456		0.01	−0.14	0.02	0.08
% of general practitioners who were approved trainers	10.6 (6.5)	0-27		−0.25	−0.18	−0.26	−0.27
% of general practitoners who were course organisers	1.2 (1.8)	0-7		−0.21	−0.23	−0.15	−0.24
% of practices with registered diabetes disease management programme	90.7 (5.9)	74-100		−0.07	−0.15	−0.04	−0.17
% of practices with registered asthma disease management programme	90.9 (6.1)	74-100		−0.13	−0.14	−0.03	−0.15
% of patients whose general practitioner offered child health surveillance	89.1 (8.4)	68-100		0.07	−0.06	0.11	−0.18
% of patients whose general practitioner offered minor surgery services	64.8 (15.8)	29-96		−0.21	−0.31	−0.01	−0.26