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Cumulative hazard curves for sudden cardiac death by quartiles of GGT. The median GGT level was 12.0 IU/L (range 11–14 IU/L) for the lowest quartile; 18.0 IU/L (range 16–19 IU/L) for the second quartile; 25.0 IU/L (range 23–29 IU/L) for the third quartile; and 46.0 IU/L (range 38–68 IU/L) for the top quartile. GGT indicates γ‐glutamyltransferase; Q, quartile; SCD, sudden cardiac death.
