The worldwide occurrence of hip fracture is high with an annual incidence of approximately 100 per 100.000 people. Mortality for patients undergoing hip fracture surgery is high with a 30-day mortality rate varying between 4.5 and 13.3 %. It is agreed that non-modifiable factors such as age, gender and pre-existing comorbidities contribute to early death of hip fracture patients. However, not many studies have focused on preoperative sepsis as a potential risk factor. Hip fracture patients are commonly identified with sepsis after surgery, but the extent of preoperative sepsis and its consequences are sparsely elucidated. Being able to identify patients at higher risk of postoperative mortality could potentially improve outcome and extensive hospital registries of vital signs and cultures allow identification of preoperative sepsis.