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Table 2 The relationship between the two microscopic examination results and biopsy results

From: A study on the value of narrow-band imaging (NBI) for the general investigation of a high-risk population of nasopharyngeal carcinoma (NPC)

  Pathological examination (n) Result (%)
+ Sensitivity Specificity Predictive value
     Positive Negative
White light
 + 19 96 82.61 0.00 0.17 0
 − 4 0     
NBI
 + 23 1 100.00 98.96 0.96 1
 − 0 95