Table 2

Univariate associations with FICB status

Covariate, % (n) or median (IQR)FICB (n=381)No FICB (n=136)P value
Age, mean (SE)75.7 (0.5)76.3 (0.8)0.48
Female sex66.9% (255)60.7% (82)0.19
White race93.7% (357)91.2% (125)0.48
ISS >9 (other minor injury)28.4% (108)31.9% (43)0.44
Fall cause of injury96.1% (366)93.4% (127)0.20
ASA score ≥III65.9% (251)71.3% (97)0.25
Any comorbidity*80.1% (305)83.8% (114)0.34
 Hypertension56.7% (216)58.1% (79)0.78
 Diabetes16.5% (63)19.1% (26)0.49
 Dependent17.3% (66)19.1% (26)0.64
 COPD13.7% (52)13.9% (19)0.92
 Smoker10.5% (40)11.0% (15)0.86
 Anticoagulant16.5% (63)25.0% (34)0.03
 Advanced directive11.6% (44)13.2% (18)0.60
Fracture type†0.08
 Head or neck52.8% (200)62.7% (84)
 Intertrochanteric44.3% (168)36.6% (49)
 Subtrochanteric2.9% (11)0.7% (1)
Surgical information
 Hip replacement (vs repair)39.1% (149)39.7% (54)0.90
 General anesthesia84.5% (322)91.9% (125)0.03
 Delayed surgery >24 hours22.3% (85)19.9% (27)0.55
 Hours to surgery, median (IQR)19.0 (11–23)16.8 (9–23)0.07
  • bold values denote statistical significance p<0.05.

  • *Individual comorbidities tabulated if they occurred in at least 10% of patients.

  • †Four patients with ‘other’ or ‘unspecified’; these are later coded as not head/neck.

  • ASA, American Society of Anesthesiologist; COPD, chronic obstructive pulmonary disease; FICB, fascia iliaca compartment block; ISS, injury severity score.