Risk factors for patients with acute hospital-acquired symptomatic pulmonary thromboembolism

This study aimed to identify independent risk factors for acute hospital-acquired symptomatic pulmonary embolism (HA-SPE) by comparing the clinical data of HA-SPE and acute nonhospital-acquired symptomatic pulmonary embolism (NHA-SPE). A total of 292 patients were included in the analysis and divided into two groups: 191 patients had acute NHA-SPE, and 101 patients had acute HA-SPE. The average age of these 292 patients was 63.2 years, and the sample included 145 males. Multivariate analysis showed that malignant tumour (OR, 3.811; 95% CI [1.914-7.586], P=0.000), recent surgery (OR, 7.310; 95% CI 3.392-15.755], P=0.000), previous VTE (OR, 5.973; 95% CI 2.194 16.262], P=0. 000), and the length of stay (LOS) (OR, 1.075; 95% CI [1.040-1.111], P=0.000) were independent risk factors for acute HA-AEP. The c-statistic for this model was 0.758 (95% CI [0.698-0.800], P<0.0001). The K-M curve showed that the hazard ratio (HR) of the HA group to the NHA group in all-cause mortality was 3.807 (95% CI [1.987, 7.295], P=0.0061). Strengthening the prevention and control of patients with these risk factors may reduce the incidence of acute HA-SPE.