Figure Legend:
Figure 1: Flow diagram depicts study selection for inclusion in
the meta-analysis according to the PRISMA statement for reporting
systematic reviews and meta-analyses.
Figure 2 : Forest Plot Demonstrating the effect of QI
intervention on reducing rarely appropriate echocardiographic studies.
Heterogeneity: df= 8 (P <0.01), I2 = 73.8; Test for overall
effect: Z = -5.36 (P <0.01).
Figure 3: (a) Forest Plot Demonstrating the effect of QI
intervention on reducing rarely appropriate echocardiographic studies in
short-term (<3 months). Heterogeneity: df= 4 (P
<0.01), I2 = 72.1; Test for overall effect: Z = -3.89 (P
<0.01). (b) Forest Plot Demonstrating the effect of QI
intervention on reducing rarely appropriate echocardiographic studies in
long-term (>3 months). Heterogeneity: df= 6 (P
<0.01), I2 = 79.2; Test for overall effect: Z = -5.17 (P
<0.01).
Figure 4: (a) Forest Plot Demonstrating the effect of using
educational aid intervention on reducing rarely appropriate
echocardiographic studies. Heterogeneity: df= 5 (P <0.01), I2
= 77.63; Test for overall effect: Z = -4.05 (P <0.01). (b)
Forest Plot Demonstrating the effect of using decision support tool
intervention on reducing rarely appropriate echocardiographic studies.
Heterogeneity: df= 3 (P 0.47), I2 = 0; Test for overall effect: Z =
-6.51 (P <0.01).
Figure 5: (a) Forest Plot Demonstrating the effect of using
feedback tools as part of QI intervention on reducing rarely appropriate
echocardiographic studies. Heterogeneity: df= 4 (P <0.01), I2
= 80; Test for overall effect: Z = -4.37 (P <0.01). (b) Forest
Plot Demonstrating the effect of not using feedback tools as part of QI
intervention on reducing rarely appropriate echocardiographic studies.
Heterogeneity: df= 3 (P 0.05), I2 = 60.89; Test for overall effect: Z =
-2.83 (P <0.01).