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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