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Table 2 Overview of results obtained during the determination of the optimal threshold for MALDI-TOF MS identification

From: MALDI-TOF MS: optimization for future uses in entomological surveillance and identification of mosquitoes from New Caledonia

Species in the database

Optimal threshold

TP

FN

TN

FP

Sensitivity

Specificity

PPV

NPV

AUC

95% CI (AUC)

An. bancroftii

1.48

7

0

217

0

1

1

1

1

1

1–1

Ae. scutellaris

1.75

9

1

214

0

0.9

1

0.9

1

0.90

0.77–1

Ae. aegypti

1.77

18

1

205

0

0.97

1

0.95

1

0.97

0.92–1

Ae. notoscriptus

1.75

19

0

205

0

1

1

1

1

1

1–1

Ae. vigilax

1.57

17

3

204

0

0.85

1

0.85

1

0.85

0.75–0.96

Ae. vexans

1.57

16

4

204

0

0.8

1

0.80

1

0.85

0.75–0.96

Cx. quinquefasciatus

1.79

29

1

190

4

0.97

0.98

0.97

0.98

0.97

0.92–1

Cx. iyengari

1.77

18

0

205

1

1

0.99

1

0.99

0.99

0.99–1

Cx. sitiens

1.64

20

0

214

0

1

1

1

1

1

1–1

Cx. annulirostris

1.78

29

1

190

4

0.97

0.98

0.97

0.98

0.99

0.97–1

T. melanesiensis

1.7

20

0

204

0

1

1

1

1

1

1–1

Six speciesa

1.70

109

8

100

7

0.93

0.93

0.93

0.93

0.94

0.91–0.97

Five speciesb

1.63

101

6

110

7

0.94

0.95

0.94

0.94

0.96

0.94–0.99

  1. aAn. bancroftii, Ae. scutellaris, Ae. aegypti, Ae. vigilax, Cx. quinquefasciatus, Cx. sitiens
  2. bAe. notoscriptus, Ae. vexans, Cx. iyengari, Cx. annulirostris, T. melanesiensis
  3. Abbreviations: AUC, area under the curve; TP, true positives; FN, false negatives; TN, true negatives; FP, false positives; PPV, positive predictive values; NPV, negative predictive values