Table 1

Correlation coefficients (‘r’ values) between study variables for 2004/2005 performance data.

	IMD 2004 (% in group 1)	QOF score (sum of four domains)^a	Patient:GP ratio	Cervical screening uptake	Flu immunisation uptake^b	Benzodiazepine prescribing	Antibiotic prescribing	MMR immunisation^c
IMD 2004 (% in group 1)	–

QOF score (sum of four domains	−0.160	–

Patient:GP ratio	0.091	−0.176	–

Cervical screening uptake	−0.515^e	0.036^d	−0.115	–

Flu immunisation uptake^a	−0.160	0.468^e	−0.315^d	0.494^e	–

Benzodiazepine prescribing	0.496^e	−0.237	0.021	−0.287^d	−0.234	–

Antibiotic prescribing	0.139	−0.141	0.316^d	0.052	−0.235	0.299^d	–

MMR immunisation uptake^b	−0.053	0.214	0.190	0.096	−0.132	0.062	0.182	–

↵a Clinical, organisational, management, and patient experience.
↵b In patients aged over 65 years.
↵c At 2 years of age.
↵d P<0.05 for correlation coefficient.
↵e P<0.01 for correlation coefficient. IMD = Indices of Multiple Deprivation. Group 1 = the proportion of practice population living in the 20% most deprived lower super output areas nationally.