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Predictive value of PQRST score for 24-month all-cause mortality in the subgroups with varying LVEF, GRACE, and TIMI scores. A PQRST score ≥ 3 increased risk of 24-month all-cause mortality in the subgroups of LVEF ≥ 40% (p = 0.020), GRACE score > 140 (p = 0.015), TIMI score ≥ 3 (p = 0.004). No significant difference was attained in the subgroup of LVEF < 40% (p = 0.216). No event occurred in the patients with GRACE ≤ 140 and PQRST score ≥ 3, and with TIMI < 3 and PQRST score < 3.
