This figure depicts the meta-analysis of the impact of intermittent pneumatic compression versus graduated compression on deep vein thrombosis in patients who had major orthopedic surgery. One trial by Silbersack and colleagues in 2004 was included in the analysis and this trial included two separate comparisons. The first comparison provided a relative risk of 0.10 with a 95 percent confidence interval of 0.01 to 0.92. The second comparison provided a relative risk of 0.03 with a 95 percent confidence interval of 0.004 to 0.31. The combined effect of these two comparisons showed a relative risk of 0.06 with a 95 percent confidence interval of 0.01 to 0.42. The I-squared value and Egger's p-value could not be calculated because of too few strata.

Figure 205Impact of intermittent pneumatic compression versus graduated compression on deep vein thrombosis in patients who had major orthopedic surgery

I2: Too few strata

Egger's p-value: Too few strata

Legend: The squares represent individual point estimates. The size of the square represents the weight given to each study in the meta-analysis. Horizontal lines through each square represent 95 percent confidence intervals. The diamond represents the combined results. The solid vertical line extending from 1 is the null value.

From: Appendix G, Forest Plots

Cover of Venous Thromboembolism Prophylaxis in Orthopedic Surgery
Venous Thromboembolism Prophylaxis in Orthopedic Surgery [Internet].
Comparative Effectiveness Reviews, No. 49.
Sobieraj DM, Coleman CI, Tongbram V, et al.

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