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Table 2 Diagnostic performance of CareStart™ using BS microscopy as a standard method

From: Diagnostic performance of CareStart™ malaria HRP2/pLDH test in comparison with standard microscopy for detection of uncomplicated malaria infection among symptomatic patients, Eastern Coast of Tanzania

Test

BS microscopy

Positive (n)

Negative (n)

CareStart™

 Positive

509

58

 Negative

1

412

Measures of diagnostic performance

Value

 

Sensitivity (95% CI) (%)

99.8 (98.9 to 99.9)

 

Specificity (95% CI) (%)

87.6 (84.4 to 90.3)

 

Positive predictive value (95% CI) (%)

89.8 (87 to 92)

 

Negative predictive value 95% CI) (%)

99.8 (98.6 to 99.9)

 

Diagnostic accuracy (95% CI)

0.5 (− 0.193 to 1.193)

 

Likelihood ratio of a positive test

8.0

 

Likelihood ratio of a negative test

0.002

 

Cohen’s kappa, p value

0.863, < 0001