是的,这些研究包括了大样本量的患者。例如,"External validation of prognostic models for critically ill patients required substantial sample sizes"的研究中,评估了41,239个ICU入院患者的数据 。另一个例子是"Stop Antibiotics on guidance of Procalcitonin Study (SAPS): a randomised prospective multicenter investigator-initiated trial to analyse whether daily measurements of procalcitonin versus a standard-of-care approach can safely shorten antibiotic duration in intensive care unit patients--calculated sample size: 1816 patients"的研究,该研究计划随机分配1816名患者 。 关键字包括:大样本量,ICU患者,预后模型,抗生素治疗,procalcitonin,随机分配。