Figure 3A. Reduction in fluoroscopy duration. Forest plot showing unadjusted difference in mean (95% confidence interval [CI]) fluoroscopy duration with quadripolar lead (QL) and bipolar lead (BL). QL results a reduction in mean fluoroscopy duration of 5.21 minutes (95% CI: -7.67 to -2.75, P<0.0001) when compared with BL. IV: inverse variance.