Table 3.

PIP frequency in the pre-and post-intervention phases by GP

Group and GP	Pre-intervention phase					Post-intervention phase				RRR (%)
	PIP No (n)	PIP Yes (n)	PIP (%)	RR PIP		PIP No (n)	PIP Yes (n)	PIP (%)	RR PIP
Control
C1	9	2	18	0.22		23	3	12	0.13	33
C2	2	3	60	1.50		17	3	15	0.18	75
C3	10	2	17	0.20		7	10	59	1.43	−247
C4	7	4	36	0.57		14	4	22	0.29	39
C5	10	5	33	0.50		11	8	42	0.73	−27
C6	5	7	58	1.40		10	10	50	1.00	14
C7	7	4	36	0.57		15	6	29	0.40	19
Intervention
I1	2	4	67	2.00		14	6	30	0.43	55
I2	7	3	30	0.43		20	6	23	0.30	23
I3	6	4	40	0.67		19	9	32	0.47	20
I4	8	6	43	0.75		4	0	0	0.00	100
I5	9	3	25	0.33		8	9	53	1.13	−112
I6	4	3	43	0.75		15	8	35	0.53	19
I7	5	5	50	1.00		17	8	32	0.47	36

C, control; I, intervention; PIP, potentially inappropriate prescribing; RR, relative risk; RRR, relative risk reduction