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Table 4 Tumor stage and the CSP score

From: Staging of gastric cancer with the Clinical Stage Prediction score

CSP score

Stage I/II

Stage III/IV

Total

> 17 points

222 pts

820 pts (78.7%)

1042 pts

≤ 17 points

1547 pts (92.1%)

133 pts

1680 pts

Total

1769 pts

953 pts

2722 pts

Sensitivity

78.7%

  

Specificity

92.1%

  

Positive predictive value

86%

  

Negative predictive value

87.5%

  
  1. The accuracy of a CSP score > 17 points for identifying stage III/IV disease was 78.7% (95% confidence interval [CI] 49.4–65.3%), while the accuracy of a score < 17 points for identifying stage I/II disease was 92.1% (95% CI 83.7–88.8%)
  2. For discriminating stage III/IV gastric cancer from stage I/II gastric cancer, the sensitivity was 78.7%, specificity was 92.1%, positive predictive value was 86.0%, and negative predictive value was 87.5%. Abbreviation: pts patients