Rational Prescribing in Primary care (RaPP): process evaluation of an intervention to improve prescribing of antihypertensive and cholesterol-lowering drugs

Table 5 Multivariate regression models: Change in thiazide-prescribing and in achievement of treatment goals

Dependant variable: Change in rate of thiazide-prescribing
Explanatory variable	B	(95 % CI)	Standard error of B	p-value
(Constant)	0.06	(-0.21 to 0.33)	0.13	0.66
Proportion of doctors present at meeting	0.12	(-0.04 to 0.27)	0.08	0.13
Pharmacist dummy-variable 1 (pharmacist A = 1, else = 0)	-0.006	(-0.09 to 0.08)	0.04	0.89
Pharmacist dummy-variable 3 (pharmacist C = 1, else = 0)	0.05	(-0.03 to 0.13)	0.04	0.23
Length of educational meeting (minutes)	0.003	(-0.002 to 0.007)	0.002	0.21
Doctors' attitude toward printing out patient-information*	-0.03	(-0.07 to 0.02)	0.02	0.21
Baseline rate of thiazide-prescribing	-0.47	(-1.05 to 0.10)	0.29	0.11
R² = 0.21, N = 63
Dependant variable: Change in rate of achievement of treatment goals
Explanatory variable	B	(95 % CI	Standard error of B	p-value
(Constant)	-0.003	(-0.06 to 0.05)	0.03	0.92
Size of practice (number of doctors)	-0.006	(-0.02 to 0.003)	0.005	0.21
Pharmacist dummy-variable 2 (pharmacist B = 1, else = 0)	-0.03	(-0.07 to 0.008)	0.02	0.11
Proportion of doctors declining installation of software	0.04	(-0.02 to 0.11)	0.03	0.20
Attitude towards receiving reminders about treatment goals^†	0.07	(0.02 to 0.12)	0.03	0.01
R² = 0.24, N = 60

* Assessed by pharmacists after or during outreach visit, see Table 3 for coding of variable.
† Response from doctors during telephone-interviews, see Table 2 for coding of variable.

ISSN: 1748-5908