Comparison 3. Above‐knee heparin bonded Dacron versus all other graft materials.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Primary patency at 12 months	2	294	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.58 [0.34, 0.98]
1.1 HBD v HUV	1	123	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.47 [0.20, 1.12]
1.2 HBD v PTFE	1	171	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.65 [0.34, 1.25]
2 Primary patency at 24 months	2	282	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.62 [0.38, 1.02]
2.1 HBD v HUV	1	117	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.59 [0.26, 1.33]
2.2 HBD v PTFE	1	165	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.64 [0.34, 1.19]
3 Primary patency at 60 months	2	232	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.55 [0.33, 0.93]
3.1 HBD v HUV	1	86	Peto Odds Ratio (Peto, Fixed, 95% CI)	1.07 [0.45, 2.51]
3.2 HBD v PTFE	1	146	Peto Odds Ratio (Peto, Fixed, 95% CI)	0.38 [0.20, 0.72]