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Table 1 Katagiri’s scoring system

From: Predicting the survival of patients with bone metastases treated with radiation therapy: a validation study of the Katagiri scoring system

Prognostic factor Score
Primary characteristicsa
 Slow1 0
 Moderate2 2
 Rapid3 3
Visceral metastases
 No 0
 Nodular 1
 Disseminated4 2
Laboratory data
 Normal 0
 Abnormal5 1
 Critical6 2
ECOG PS
 0–2 0
 3–4 1
Previous chemotherapy
 No 0
 Yes 1
Multiple skeletal metastases
 No 0
 Yes 1
Total 10
  1. 1: Breast cancer, prostate cancer, thyroid cancer, multiple myeloma, and malignant lymphoma; 2:Renal cell carcinoma, endometrial and ovarian cancer, sarcoma, and others; 3: Lung cancer, colorectal cancer, gastric cancer, pancreatic cancer, head and neck cancer, esophageal cancer, other urological cancers, melanoma, hepatocellular carcinoma, gall bladder cancer, cervical cancer, and cancers of unknown origin; 4: Pleural, peritoneal, or leptomeningeal dissemination; 5: CRP ≥ 0.4 mg/dL, LDH ≥ 250 IU/L, or serum albumin < 3.7 g/dL; 6: platelet < 100,000/lL, serum calcium ≥10.3 mg/dL, or total bilirubin ≥1.4 mg/dL
  2. aNOTE. Primary characteristics are partially modified