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. Author manuscript; available in PMC: 2008 May 21.
Published in final edited form as: N Engl J Med. 2007 Dec 27;357(26):2657–2665. doi: 10.1056/NEJMoa065457

Figure 2. Hazard Ratios and 95% Confidence Intervals for Subsequent ICD Therapy According to Subgroup.

Figure 2

The chart shows hazard ratios (black diamonds) with 95% confidence intervals (horizontal lines) and P values for the interaction between the treatment effect and each subgroup variable. Because of the limited number of patients in certain subgroups, wide confidence intervals are noted. The dashed vertical line indicates the hazard ratio for the study entire population. NYHA denotes New York Heart Association, and ICD implantable cardioverter–defibrillator.

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