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. Author manuscript; available in PMC: 2017 Nov 22.
Published in final edited form as: Circulation. 2016 Oct 19;134(21):1617–1628. doi: 10.1161/CIRCULATIONAHA.116.022913

Figure 1. Heart failure hospitalization or death among patients stratified by device type and PR interval among the overall, lBBB, and non-lBBB populations.

Figure 1

Cumulative incidence plots depicting rates of HF hospitalization or death among the entire population (A), non-LBBB patients (B), and LBBB patients (C), when stratified based on device type (CRT-D versus ICD) and PR interval (≥230 ms versus <230 ms). CRT indicates cardiac resynchronization therapy; CRT-D, CRT with defibrillator; HF, heart failure; ICD, implantable cardioverter defibrillator; and LBBB, left bundle-branch block.