Background: We investigated the ability of the platelet-to-hemoglobin ratio (PHR) to predict mortality and disease severity in patients with acute pulmonary embolism (APE). Materials & methods: The severity of APE was classified as massive (high risk), submassive (intermediate risk) or nonmassive (low risk). PHR is defined as platelet count/hemoglobin count. Results: PHR was significantly higher in patients with massive APE, and this elevation showed a gradual increase from the nonmassive group to the massive group (p < 0.001). In-hospital and 1-month mortality were higher in patients with high PHR values. PHR was an independent risk factor for the development of massive APE (odds ratio: 1.014; 95% CI: 1.011–1.017; p = 0.009). Conclusion: PHR values predicted massive APE and were an independent predictor of mortality in APE.

背景：我们调查了血小板与血红蛋白比率 (PHR) 预测急性肺栓塞 (APE) 患者死亡率和疾病严重程度的能力。材料与方法： APE 的严重程度分为大规模（高风险）、次大规模（中等风险）或非大规模（低风险）。PHR 定义为血小板计数/血红蛋白计数。结果：大块 APE 患者的 PHR 显着升高，并且这种升高显示出从非大块组到大块组的逐渐增加（p < 0.001）。PHR 值高的患者住院和 1 个月死亡率较高。PHR 是发生大规模 APE 的独立危险因素（优势比：1.014；95% CI：1.011-1.017；p = 0.009）。结论：PHR 值预测大量 APE，并且是 APE 死亡率的独立预测因子。