Table 2.

The symptoms, vital signs, and characteristics related to PE.

Pt	Main symptoms of PE before diagnosis	Caprini score	D-dimer (μg/ml)	Pre-PE hemoglobin (g/L)	Time to PE (postoperative days)	Systolic blood pressure ≤90 mmHg	Heart rate ≥100 bpm1	Respiratory rate ≥25 bpm2	Oxygen saturation (%)	Transferred to ICU	Days stay in ICU
1	Shortness of breath, flush on face	4	0.23	135	1	None	Yes	Yes	94	None	N/A
2	Dyspnea, chest distress	5	1.62	140	3	None	None	None	74	None	N/A
3	Syncope, cold limbs, sweating	4	0.54	167	6	Yes	Yes	None	88	Yes	7
4	Shortness of breath, chest distress	5	0.43	138	3	None	None	None	96	None	N/A
5	Dyspnea, chest distress, dizzying, sweating	5	4.69	121	2	None	Yes	None	39	Yes	7
6	Shortness of breath, dyspnea, shivering	7	2.55	68	4	None	Yes	Yes	91	Yes	6
7	Shortness of breath	6	7.35	115	9	None	None	Yes	93	Yes	7
8	Dyspnea, shortness of breathing, chest distress, sweating	7	1.23	68	1	None	Yes	Yes	68	Yes	21

PE, pulmonary embolism; bpm¹, beats per minute; bpm², breaths per minute; ICU, intensive care unit.