Convulsion free for 12 months (age ≥16 years) (n = 7447)
Clinical indicator	β	SE(β)
Characteristic
Intercept	73.551	1.051
Area
Density (people per hectare 2001)	–0.265	0.230
Index of Multiple Deprivation	–3.643c	0.255
Patients
≥65 years of age	2.140c	0.254
% Member of racial or ethnic minority	–1.055c	0.308
Disease prevalence
Unadjusted prevalence	–1.570c	0.273
Practice
Size of practice population	–0.160	0.192
List size per FTE GP	0.032	0.091
Single-handed practice	1.600a	0.714
Primary medical services contract	–0.690	0.367
GPs
≥45 years of age	–0.264	0.202
% Female GPs	0.649c	0.190
% GPs qualified in UK	0.888b	0.287
Exception reporting
Convulsion free for 12 months	6.040c	0.252
Practice nurses
List size per FTE practice nurse (quintiles)
1st ≤3038.01	–2.364a	1.120
2nd 3038.02–3901.48	–1.609	1.054
3rd 3901.49–4823.44	–2.312a	1.036
4th 4823.45–6210.68	–1.609	1.088
5th ≥6210.69	–2.107a	1.092
No practice nurse	0.000
Global test for effect of nurse staffing –2 log likelihood (IGLS)
Model without practice nurse variable	60878.023
Model with practice nurse variable	60869.984
Difference in log likelihood (5df)	8.039
P-value	0.15
Variance
PCT level	7.614	1.221
Practice level	150.811	4.599

df = degrees of freedom. FTE = full-time equivalent. SE = standard error..

^aP<0.05;

^bP<0.01;

^cP<0.001.