. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: J Clin Virol. 2014 Jan 27;59(4):223–227. doi: 10.1016/j.jcv.2014.01.014

Table 1.

Sensitivity, specificity, positive and negative predictive values of DBS compared to plasma specimen for anti-HCV

Anti-HCV	Plasma Positive	Plasma Negative	Total
DBS Positive	54	0	54
DBS Negative	23	71	94

Total	77	71	148

Sensitivity = 70.1% (95% CI 58.5-79.8)

Specificity = 100% (95% CI 93.6-100)

Positive Predictive Value = 100% (95% CI 91.7-100)

Negative Predictive Value = 75.5% (95% CI 65.4-83.6)

Kappa = 0.69 (95% CI 0.58-0.81)