3. Results
The average age of the studied patients is 82.5 ± 8.4 years with a median of 84 years and a 83% of patients are older than 75 years old. There is a predominance of women (82.9%). The average score of comorbidity of Charlson was 6.1 ± 2.3 with a median of 6. A 46.2% of patients present an estimated creatinine clearance by MDRD < 60 mL/min/1.73 m2.
In 60.1% of cases the fracture is extracapsular, being the most common the extracapsular fracture Evans type 2 (26.9%). In patients with an intracapsular fracture (39.9%) the most common type has been the Garden type III (46.8%). Accordingly to the type of fracture the most common type of treatment has been the osteosynthesis (59.5%) while the arthroplasty is performed in the remaining cases. During the follow-up period 9 patients died. These patients were older (86.3 ± 4.7 years) than the total sample studied, with higher level of dependency in Barthel index (88.9%) and Lawton index (100.0%).
The dependence level for the basic activities of daily living (Barthel Index) at baseline and 90 days after the fracture is shown in Table 1. The average Barthel index score decreased significantly between baseline and at 90 days of fracture going from 75.16 ± 28.16 to 56.54 ± 31.85 (p < 0.001) ( Table 1). In all activities a clear decrease was observed in that independence capacity. The magnitude of this decline between the baseline and at 90 days has been greater in ambulation activities (31.6%), the ability to climb stairs (29.4%) and the ability to transfer from the couch to bed (29.2%). The smallest decrease of independence was produced in feeding activity (4.8%).