This calculator is an educational and clinical decision support tool. Results DO NOT replace professional medical evaluation, laboratory tests, or clinical judgment. Always consult a qualified healthcare professional for diagnosis, treatment, and clinical decisions. Calculations are based on scientifically validated formulas but may not be applicable to all patients.
Karnofsky Performance Scale (KPS)
Assess functional capacity and quality of life of cancer patients using the Karnofsky Scale (0-100 points).
Input Data
How It Works
The Karnofsky Scale assesses patient functional capacity on a scale from 0 (death) to 100 (normal function). Widely used in oncology.
Clinical Use
Used to assess eligibility for treatments, predict prognosis, and monitor disease progression in cancer patients.
Frequently Asked Questions
What does KPS 70 mean?
KPS 70 indicates that the patient can care for themselves but is unable to perform normal activities or work.
Is KPS < 50 serious?
Yes, KPS <50 indicates significant dependence and generally limits aggressive cancer treatment options.
How does KPS affect treatment?
Patients with KPS ≥70 generally tolerate chemotherapy better. KPS <50 may contraindicate aggressive treatments.
Can KPS improve?
Yes, with effective disease treatment or adequate support, KPS can improve significantly.
Frequently Asked Questions
What is the Karnofsky Performance Status?
The Karnofsky Performance Status (KPS) is a scale used to assess functional impairment in cancer patients. It ranges from 100 (normal, no complaints) to 0 (dead). It is widely used in oncology to assess prognosis, treatment tolerance, and compare effectiveness of therapies.
What KPS score indicates good performance?
100-80 = Able to carry on normal activity and work (no special care needed), 70-50 = Unable to work, able to live at home with varying assistance, 40-0 = Unable to care for self, requires institutional/hospital care. Higher scores indicate better functional status.
How does KPS compare to ECOG?
KPS (0-100) is more granular than ECOG (0-5). Generally, KPS 100-90 = ECOG 0; KPS 80-70 = ECOG 1; KPS 60-50 = ECOG 2; KPS 40-30 = ECOG 3; KPS 20-10 = ECOG 4. KPS is more commonly used in radiation oncology, ECOG in medical oncology.
Why is performance status important in cancer care?
Performance status is one of the strongest prognostic factors in cancer. It predicts survival, treatment tolerance, and quality of life. Patients with KPS < 60 often have limited treatment options and may benefit more from supportive care than aggressive therapy.