Table 3. Risk stratification models for patients with pulmonary embolism by the risk of 30-day mortality⁸¹^,¹⁷⁴.

	PESI			Simplified PESI
	Variable	Point		Variable	Point
Patient characteristics			Patient characteristics
	Age	Age in years		Age	1 if age > 80 years
	Male sex	10
Comorbidity			Comorbidity
	Cancer	30		Cancer	1
	Heart failure	10
	Chronic pulmonary disease	10
				Chronic cardiopulmonary disease	1
Clinical finding			Clinical finding
	SBP < 100 mmHg	30		SBP < 100 mmHg	1
	Heart rate ≥ 110 beats per minute	20		Heart rate ≥ 110 beats per minute	1
	Respiratory rate ≥ 30 breaths per minute	20
	Arterial oxygen saturation < 90%*	20		Arterial oxygen saturation < 90%*	1
	Temperature < 36 °C	20
	Altered mental status^#	60
Risk category	Point	Mortality^†	Risk category	Point	Mortality^†
Class I, very low	≤ 65	1.1%	Low	0	1.0%
Class II, low	66-85	3.1%	High	≥ 1	10.9%
Class III, intermediate	86-105	6.5%
Class IV, high	106-125	10.4%
Class V, very high	> 125	24.5%

* With and without the supplemental oxygen. ^# Defined as disorientation, lethargy, stupor, or coma. ^† Estimates in the derivation cohorts.

PESI, pulmonary embolism severity index; SBP, systolic blood pressure.

Table 3. Risk stratification models for patients with pulmonary embolism by the risk of 30-day mortality81,174.