Nottingham Prognostic Index Calculator
Calculate the Nottingham Prognostic Index (NPI) to predict survival outcomes in breast cancer patients.
Input Parameters
Enter details for calculation.
Nottingham Index
Expert Tip
An NPI score < 2.4 indicates excellent prognosis, while an NPI > 5.4 correlates with poor long-term survival.
Calculation Methodology & Details
Formula
Established mathematical index evaluating tumor diameter, pathological lymph node metastasis, and grade.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How NPI is Scored
Follow these steps to use this calculator:
Enter Tumor Size
Input largest diameter of primary lesion in centimeters.
Choose Node and Grade
Input pathological lymph node involvement and tumor differentiation grade.
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ℹ️ About this Calculation
This clinical oncology calculator provides chemotherapy dosing precision, tumor staging risk stratification, performance status scoring, and prognostic index evaluation based on ASCO and NCCN clinical guidelines.
Variable Glossary
Oncology & Lab Data
Serum creatinine/eGFR, target AUC, GFR (Calvert formula), BSA (m²), tumor size/grade, or biopsy scores.
Prognostic Index
Calculated dose (mg), ECOG grade (0-5), Nottingham Index score, or 10-year cancer risk percentage.
How to Calculate Step-by-Step
Step 1
Enter patient body surface area, GFR/creatinine clearance, or histopathological biopsy findings.
Step 2
Specify target AUC dose parameters or patient functional performance status options.
Step 3
Review calculated chemotherapy total mg dose, risk stratification category, or survival probability estimates.