. 2017 May 15;195(10):1353–1361. doi: 10.1164/rccm.201605-0946OC

Table 3.

Platelet Count Decline and Prognosis of Patients with Acute Respiratory Distress Syndrome

	Survival_28d^*		Survival_60d^†
Variable	HR (95%CI)	P Value	HR (95%CI)	P Value
∆PLT_28d^‡	1.53 (1.08–2.16)	0.0172	1.73 (1.25–2.39)	8.4 × 10⁻⁴
∆PLT_7d^§	1.73 (1.26–2.39)	7.3 × 10⁻⁴	1.82 (1.36–2.44)	6.8 × 10⁻⁵

Definition of abbreviations: CI = confidence interval; HR = hazard ratio per 100 × 10³/μl increment; PLT = platelet count.

Cox model was used with adjustment for age, sex, blood transfusion, and baseline platelet count and Acute Physiology and Chronic Health Evaluation III score.

Primary outcome.

^{^†}

Secondary outcome.

^{^‡}

Maximal platelet count decline within 28 days (∆PLT_28d) after intensive care unit admission compared with baseline platelet count.

^{^§}

Maximal platelet count decline within 7 days (∆PLT_7d) after intensive care unit admission compared with baseline platelet count.