Table 3 Cox analysis of 1-year mortality

Demographic characteristics

 Sex(female)

0.873 (0.622—1.225)

0.433

-

-

0.848 (0.599—1.200)

0.352

 Age(years)

1.113 (1.090—1.136)

 < 0.001

1.116 (1.095—1.138)

 < 0.001

1.118 (1.097—1.140)

 < 0.001

 BMI (kg/m2)

1.003 (0.965—1.043)

0.875

-

-

-

-

 Fractures history (yes)

1.085 (0.695—1.693)

0.72

-

-

-

-

 Smoking history (yes)

1.190 (0.715—1.967)

0.508

-

-

1.126 (0.672—1.887)

0.652

 Alcoholism history(yes)

1.036 (0.508—2.114)

0.922

-

-

-

-

Surgery-related variables

 Location of fracture(femoral neck)

1.062 (0.768—1.470)

0.715

-

-

-

-

 Surgical procedures(arthroplasty)

0.937 (0.676—1.298)

0.694

-

-

0.832 (0.595—1.163)

0.281

 Anesthesia (spinal)

0.000 (0.000—Inf)

0.993

-

-

0.000 (0.000—Inf)

0.994

 Time from injury to surgery (Days)

1.063 (0.893—1.266)

0.494

-

-

-

-

 CCI score (> 4)

1.097 (0.760—1.583)

0.62

-

-

-

-

 Electrocardiogram (abnormal)

0.775 (0.559—1.074)

0.125

-

-

0.693 (0.498—0.964)

0.03

 Chest radiograph (abnormal)

0.879 (0.635—1.217)

0.437

-

-

0.875 (0.628—1.218)

0.428

 Polytrauma(yes)

1.171 (0.761—1.801)

0.472

-

-

-

-

Laboratory findings

 RBC (10^12/L)

1.163 (0.834—1.622)

0.373

-

-

-

-

 Hb (g/L)

1.003 (0.991—1.014)

0.653

-

-

-

-

 ALB (g/L)

0.994 (0.976—1.012)

0.486

-

-

-

-

 GLU (mmol/L)

0.964 (0.856—1.085)

0.546

-

-

-

-

 non-users with hypertension (Ref)

-

-

-

-

-

-

 non-users without hypertension

0.734 (0.484—1.115)

0.147

0.405 (0.266—0.617)

 < 0.001

0.426 (0.279—0.650)

 < 0.001

 ACEI users

0.465 (0.278—0.776)

0.003

0.220 (0.131—0.368)

 < 0.001

0.230 (0.137—0.385)

 < 0.001

 ARB users

0.432 (0.237—0.787)

0.006

0.284 (0.156—0.518)

 < 0.001

0.294 (0.161—0.539)

 < 0.001