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Table 2 Sensitivity, specificity, positive predictive value, and negative predictive value of the tumor maker for predicting a recurrence in all patients* and in patients with elevated pretreatment tumor marker

From: Use of serum squamous cell carcinoma antigen for follow-up monitoring of cervical cancer patients who were treated by concurrent chemoradiotherapy

 

SCC-Ag (n = 112)*

SCC-Ag (n = 77)

Sensitivity

11/18 (61.1%)

11/16 (68.8%)

Specificity

92/94 (97.9%)

59/61 (96.7%)

PPV

11/13 (84.6%)

11/13 (84.6%)

NPV

92/99 (92.9%)

59/64 (92.2%)

  1. Abbreviations: SCC-Ag = squamous cell carcinoma antigen; PPV = positive predictive value; NPV = negative predictive value.