In fact, although there was no statistical significance in patients older than 60 years, with serum creatinine 5.6 mg/dl or higher, or those with alveolar hemorrhage, but all cases showed a trend toward a smaller hazard ratio (HR [95% CI]; 0.75 [0.54,1.04], 0.77 [0.53,1.11], and 0.64 [0.33,1.24], respectively).
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