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. 2022 Jun 8;7(8):808–816. doi: 10.1001/jamacardio.2022.1437

Figure 2. Primary and Secondary Confirmatory End Points at 12 Months for Supported and Unsupported Saphenous Vein Grafts (SVGs).

Figure 2.

Estimated mean intimal hyperplasia area and variance were based on 30 imputations with estimates combined using the Rubin rule for device-supported and unsupported grafts. Error bars indicate 95% CI. In the Fitzgibbon patency scale, class I indicates no intimal irregularity; class II, irregularity of less than 50% of estimated intimal surface; and class III, irregularity of 50% or more of estimated intimal surface.