highly significantP < 0.001
Results Multivariate analysis indicated that an elevated TSH level was a highly significant predictor for 30-day survival (HR = 0.743, 95% CI: 0.629–0.878, P < 0.001) and 90-day survival (HR = 0.807, 95% CI: 0.717–0.909, P < 0.001).