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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