Table 3

Detection rate of HIN-1 methylation in nasal swabs and throat-rinsing fluids of NPC patientsa

A.MSP+ (%)MSP− (%)
Nasopharyngeal swab
NPC (n = 26)12 (46%)14 (54%)
Normal (n = 14)0 (0%)14 (100%)
Sensitivity = 46%Specificity = 100%
B.Throat-rinsing fluid
NPC (n = 26)5 (19%)21 (81%)
Normal (n = 20)0 (0%)20 (100%)
Sensitivity = 19%Specificity = 100%
  • a MSP+, HIN-1 methylated; MSP−, HIN-1 unmethylated.