Abstract: Objective To investigate the risk factors for mortality in elderly patients with femoral neck fractures during  one year period and to clarify the re
lationships between the risk factors and postoperative mortality.Methods  196 (64 male,132 female)  patients  with consecutive isolated nonpathologic h
ip fractures were chosen.All patients were more than 65 years old.The patients were treated with hemiarthroplasty.The clinical data of patients was collected.The relationship between age,gender,American Society of Anaesthesiologists (ASA) rating of operative risk,the time  from injury to surgery,
blood albumin level,  haemoglobin level, total lymphocyte count and mortality during 1 year after operation was investigated.
Results In total,13 patients died during one year, among them 1 patient in hospital ,and 12 patients in follow-up period;the survival rates were 99.5% after 3 months,96.9% after 6 months,and 94.8% after 1 year;the ASA scores  were Ⅲ-Ⅳ grades in 12 patients including 8 patients with ASA Ⅲ grade and 4 patients with ASA Ⅳ grade;there were 11 patients with preoperative blood albumin level<35 g?L-1,and 12 patients with 
  preoperative lymphocyte count<1 500 mL-1.The comparisons of blood album in level,haemoglobin level,ASA score,and lymphocyte count  between the death patients and the survival patients had statistical differences(P<0.05).There was no significant difference of ages
 between the death patients and the survival patients(P>0.05).There were no significant differences of constituent ratio between the patients with the time  from injury to surgery less than 5 d and the patients with the time from injury to surgery more than 5 d(P>0.05).
Conclusion A lower lymphocyte count,more than two comorbidities,blood albumin level<35 g/L^-1,haemoglobin level  <10 g/L^-1,and ASA Ⅲ-Ⅳ grade are significant factors in assessing the one-year mortality in elderly patients with femoral neck fractures;age,gender and the time  from injury to  surgery are not significant factors in assessing the one-year mortality in elderly patients with femoral neck fractures.

Key words: femoral neck fractures, blood albumin, haemoglobin