3.4 Association between hospital-related factors and pulmonary
embolism
Of the 113 participating hospitals, a higher prevalence of PE was
observed in the tertiary hospitals (P<0.001), general
hospitals (P=0.006), and those with a Cesarean section rate
>50% or <30% (P<0.001).
Unsurprisingly, hospitals with adequate diagnostic/treatment strategies
showed a higher PE rate (P<0.001) (Fig 2). Hospitals not using
B ultrasound of the lower extremity vein (RR=1.4) and anticoagulants
(RR=1.2) were at a higher risk of PE than those using them. Patients
with early mobilization after vaginal delivery (RR=1.3) and Cesarean
section (RR=1.1) showed a significantly increased PE incidence (Table
3).