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. 2013 Feb 26;8(2):e54695. doi: 10.1371/journal.pone.0054695

Table 1. Results of pooled sensitivity and specificity, before and after adjustment for imperfect reference standard.

POC Test Sample Reference Standard Pooled Parameters Assuming Perfect Reference Standard (95% CrI) Assuming Imperfect Reference Standard (95% CrI) Reported Parameter by Manufacturer
Determine Serum TP Specific (n = 11) Sensitivity 92.03% (87.22, 95.77) 90.04% (80.45, 95.21) 100%
Specificity 92.68% (87.24, 95.87) 94.15% (89.26, 97.66) 100%
Whole Blood TP Specific (n = 15) Sensitivity 79.54% (71.95, 86.04) 86.32% (77.26, 91.70) 92.30%
Specificity 98.91% (97.71,99.71) 95.85% (92.42, 97.74) 100%
TP & non-TP Specific (n = 8) Sensitivity 77.68% (60.94, 90.40) 47.84% (18.25, 83.18) NA
Specificity 98.18% (94.42, 99.93) 97.81% (89.75, 99.79) NA
SD Bioline Serum TP Specific (n = 8) Sensitivity 87.88% (82.43, 91.80) 87.06% (75.67, 94.50) 99.3%
Specificity 96.03% (92.67, 98.05) 95.85% (89.89, 99.53) 99.5%
Whole Blood TP Specific (n = 13) Sensitivity 83.78% (80.89, 86.47) 84.50% (78.81, 92.61) NA
Specificity 98.39% (97.56, 99.01) 97.95% (92.54, 99.33) NA
Syphicheck Serum TP Specific (n = 7) Sensitivity 75.96% (63.55, 85.29) 74.48% (56.85, 88.44) 100%
Specificity 98.51% (96.85, 99.59) 99.14% (96.37, 100.0) NA
Whole Blood TP Specific (n = 12) Sensitivity 75.12% (70.00,80.48) 74.47% (63.94, 82.13) NA
Specificity 99.44% (98.96, 99.81) 99.58% (98.91, 99.96) NA
Visitect Serum TP Specific (n = 7) Sensitivity 87.32% (79.97, 92.14) 85.13% (72.83, 92.57) NA
Specificity 95.76% (92.17, 97.76) 96.45% (91.92, 99.29) NA
Whole Blood TP Specific (n = 14) Sensitivity 76.22% (69.82, 81.62) 74.26% (53.62, 83.68) NA
Specificity 99.33% (98.73, 99.78) 99.43% (98.22, 99.98) NA

CrI = Credible Interval; “n” refers to the number of data entries per group; NA = Not Available.