Nottingham Hip Fracture Score (NHFS) Calculator
The NHFS predicts 30-day mortality after hip fracture surgery.
It is based on age, sex, admission hemoglobin, cognition, living situation, comorbidities, and malignancy history.
NHFS Score: /10
Predicted 30-day mortality:
Score-to-risk table used:
0 = 0.4%, 1 = 0.6%, 2 = 1.0%, 3 = 1.7%, 4 = 2.9%, 5 = 4.7%, 6 = 7.6%, 7 = 12.3%, 8 = 18.2%, 9 = 27.0%, 10 = 38.0%. This tool supports risk stratification and informed discussion, but it does not replace clinical judgment.
0 = 0.4%, 1 = 0.6%, 2 = 1.0%, 3 = 1.7%, 4 = 2.9%, 5 = 4.7%, 6 = 7.6%, 7 = 12.3%, 8 = 18.2%, 9 = 27.0%, 10 = 38.0%. This tool supports risk stratification and informed discussion, but it does not replace clinical judgment.
The Nottingham Hip Fracture Score (NHFS) is a preoperative risk score used to estimate a patient’s chance of dying within 30 days after hip fracture surgery. It was developed as a summative score of seven preoperative variables and gives an estimated 30-day postoperative mortality risk.
In practice, it helps clinicians with risk stratification, perioperative planning, and discussions with patients and families after a hip fracture. It predicts risk; it does not decide whether surgery should happen by itself.
The variables commonly used in NHFS are:
- age
- sex
- hemoglobin level
- cognitive status
- residence in an institution
- comorbidity burden
- malignancy history
Higher NHFS values are associated with higher 30-day mortality after hip fracture repair, and modern validation studies continue to show it is a useful predictor.
