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Table 1 Summary of the microscopy findings for GS and FM

From: Malaria over-diagnosis in Cameroon: diagnostic accuracy of Fluorescence and Staining Technologies (FAST) Malaria Stain and LED microscopy versus Giemsa and bright field microscopy validated by polymerase chain reaction

 

GS

FM

Techniciana

Nb

PPV, %

NPV, %

Errorsc, %

Sen, %

Spec, %

PPV, %

NPV, %

Errors, %

Sen, %

Spec, %

A

138

13.33

92.59

24.64

33.33

79.37

33.33

93.80

8.70

38.46

92.37

B

226

26.67

96.17

8.41

33.33

94.81

23.08

96.19

7.96

27.27

95.28

C

138

0.00

94.85

6.52

0.00

98.47

0.00

94.66

10.14

0

94.66

D

218

38.46

96.41

7.21

41.67

95.92

55.56

96.48

5.29

41.67

97.96

Mean

 

19.62

95.01

11.69

27.08

92.14

27.99

95.28

8.02

26.85

95.07

SD

 

16.62

1.75

8.66

18.48

8.65

23.07

1.27

2.04

18.93

2.30

  1. a Technicians ordered with increasing experience and training level
  2. b The total patient number was 499, however three samples were analysed by two technicians yielding the same results leading to a total number of reads of 501
  3. c Error rate refers to the combination of the false positive and false negative readings in a percentage format