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Table 2 Concordance between reader 1 and reader 2: percentage of agreement and Kappa value

From: A clinical utility evaluation of dual HIV/Syphilis point-of-care tests in non-clinical settings for screening for HIV and syphilis in men who have sex with men

Site

BIOLINE POCT

CHEMBIO POCT

HIV

syphilis

HIV

syphilis

Agreement

Kappa (95% CI)

Agreement

Kappa

(95% CI)

Agreement

Kappa

(95% CI)

Agreement

Kappa

(95% CI)

Site 1

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

Site 2

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

Site 3

- a

- a

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

99.29%

0.93

(0.84–1.00)

Site 4

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

98.06%

0.86

(0.81–0.90)

TOTAL

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

100.00%

1.00

(1.00–1.00)

99.64%

0.98

(0.97–0.98)

  1. aNot enough rating categories (no positives)