BAR Could Predict Mortality After Hip Fracture - Summary - MDSpire

BAR Could Predict Mortality After Hip Fracture

Preoperative lab ratio shows stronger association with short-term mortality risk vs other biomarkers.

  • By

  • Andrea Surnit

  • May 1, 2026

  • 2 min

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Objective:

To evaluate the association of preoperative blood urea nitrogen-to-albumin ratio (BAR) with 30-day mortality in elderly patients undergoing surgery for hip fractures.

Key Findings:
  • 10.5% of patients died within 30 days post-surgery.
  • Higher BAR values and lower albumin levels were observed in patients who died.
  • A BAR value of 9 or greater was associated with approximately 2.7 times the odds of 30-day mortality after adjustments.
  • BAR demonstrated 79% sensitivity and 72% specificity for predicting mortality.
Interpretation:

BAR is a strong independent predictor of early mortality in elderly patients with hip fractures, reflecting multiple physiological factors.

Limitations:
  • Retrospective, single-center design.
  • Potential for unmeasured confounding factors such as hydration status, nutritional condition, and frailty.
  • Focus on short-term outcomes without cause-specific mortality or long-term follow-up.
Conclusion:

Preoperative BAR is a simple and readily available biomarker that could enhance preoperative risk stratification for elderly patients with intertrochanteric hip fractures.

Original Source(s)

BAR Could Predict Mortality After Hip Fracture

  • by Andrea Surnit

  • May 1, 2026

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