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The relationship between observed and expected numbers of deaths as a percent of risk group deciles for events during 2 years (A), 3 years (B), and 4 years (C) of follow-up after implantable cardioverter-defibrillator implantation is shown. The linear association between observed and expected percents is plotted as a solid line, along with a dashed line identifying the ideal association. HL = Hosmer-Lemeshow.
