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Table 2 Comparison of effectiveness of the three diagnostic strategies

From: Cost-effectiveness of malaria microscopy and rapid diagnostic tests versus presumptive diagnosis: implications for malaria control in Uganda

Test resultsψ

Diagnostic strategy

Presumptive

Microscopy

RDT

True positivea

35

42

81

False positive

53

14

29

False negative

54

47

8

True negativeb

158

197

182

Totalc

300

300

300

Number correctly diagnosedd

193

239

263

Proportion correctly diagnosed (%)e

64.3

79.7

87.7

  1. ψgauged against polymerase chain reaction as reference standard, RDT = rapid diagnostic test, d = (a+b), e = (d/c)*100