Table 2

Regression coefficients for process indicators

Indicators	Payment quality (%)		Delivered quality (%)
Indicators	Regression coefficient*	p Value	Regression coefficient*	p Value
CHD, coronary heart disease; COPD, chronic obstructive pulmonary disease; FEV₁, forced expiratory volume in 1 s.
*Reflects the effect of a one-point increase in the percentage of patients receiving state benefits on the grounds of low income on the percentage of patients achieving the indicator. There is a 40.9-point range in the deprivation measure, and 90% of practices lie in a 30-point range.
CHD—smoking status recorded	−0.01	0.61	−0.01	0.56
Stroke—smoking status recorded	0.01	0.53	0.01	0.53
Hypertension—smoking status recorded	0.03	0.11	0.03	0.11
Diabetes—smoking status recorded	0.03	0.03	0.02	0.21
COPD—smoking status recorded	0.07	<0.001	0.07	<0.001
CHD—blood pressure recorded	−0.07	<0.001	−0.09	<0.001
Stroke—blood pressure recorded	−0.03	0.18	−0.03	0.03
Hypertension—blood pressure recorded	0.04	0.27	0.02	0.61
Diabetes—blood pressure recorded	0.01	0.24	0.00	0.78
CHD—cholesterol recorded	−0.10	0.01	−0.11	<0.001
Stroke—cholesterol recorded	0.05	0.33	0.05	0.76
Diabetes—cholesterol recorded	0.07	<0.001	0.01	0.64
Diabetes—retinal screening recorded	0.07	0.17	−0.52	<0.001
Diabetes—peripheral pulses recorded	0.13	0.02	−0.17	0.01
Diabetes—neuropathy testing recorded	0.13	0.03	−0.18	0.01
Diabetes—creatinine recorded	0.04	0.20	−0.03	0.40
COPD—diagnosis by spirometry	0.32	<0.001	−0.35	<0.001
COPD—record of recent FEV₁	0.35	<0.001	−0.45	<0.001