Demographic characteristic and causes of FES
| Characteristics | |
| Sex | |
| Male (117/181) | |
| Female (64/181) | |
| Age/yrs (M, IQR) | 29 (22–46) |
| Time from injuries/surgeries to symptom onset in days (median, interquartile range) | 1(0–2) |
| Type of injuries/surgeries/diseases | |
| Femoral fracture | (60/181) |
| Tibial and fibula fractures | (26/181) |
| Multiple bone fractures | (42/181) |
| Vertebral fracture | (3/181) |
| Humerus fracture | (2/181) |
| Total hip arthroplasty | (1/181) |
| Total knee arthroplasty | (3/181) |
| Bilateral sinus floor augmentation | (1/181) |
| Lung transplantation from donor-acquired FES | (4/181) |
| Liposuction and fat grafting | (22/181) |
| Renal angiomyolipoma/malignant tumor | (7/181) |
| Bone marrow necrosis | (6/181) |
| Others (malignant with chemotherapy, hyperinflammation state) | (2/181) |
| Unknown | (2/181) |