Table 2

Effect of intervention using relative risk (RR) on the five indicators of general practitioner referral quality

Effect of interventionPooled baseline proportionEstimated postintervention proportionEffect of intervention for practices with baseline proportion equal or below the pooled baseline proportionEffect of intervention for practices with baseline proportion above the pooled baseline proportion
RR
(95% CI)
Proportion (%)
(95% CI)
Proportion (%)
(95% CI)
RR
(95% CI)
(n=no of practices)
RR
(95% CI)
(n=no of practices)
Adherence to pathways1.57
(1.35 to 1.81)
42
(35 to 48)
66
(57 to 76)
2.09
(1.60 to 2.73)
(n=17)
1.38
(1.16 to 1.64)
(n=16)
Letter information on suspected diagnosis1.31
(1.19 to 1.43)
59
(53 to 65)
77
(70 to 84
1.74
(1.47 to 2.05)
(n=14)
1.19
(1.09 to 1.29)
(n=19)
Letter information on previous management1.21
(1.11 to 1.31)
67
(61 to 73)
81
(74 to 88
1.55
(1.35 to 1.78)
(n=14)
1.09
(1.02 to 1.15)
(n=19)
Conversion of trauma and orthopaedics referrals to surgery1.45
(1.05 to 2)
43
(34 to 52)
62
(58 to 65
2.39
(1.56 to 3.67)
(n=17)
1.13
(0.87 to 1.46)
(n=11)
Seen once and discharged0.51
(1.33 to 1.78)
13
(10 to 17)
6
(3 to 9
0.50
(0.30 to 0.80)
(n=19)
0.50
(0.16 to 1.52)
(n=14)