Table 2: Agreement of MALDI-TOF MS with standard biochemical or molecular identifications for related genera using different identification cutoff scores.

Conventional or molecular
identification methoda
No of isolates Genus IDb (score >1.5) Species ID (score >1.7) NO IDc Genus ID
(score >1.7)
Species ID
(score >2.0)
NO ID
Leuconostoc mesenteroides 8 8 8 8 7
Leuconostoc pseudomesenteroides 3 3 3 3 1
Leuconostoc lactis 4 4 4 4 3
Aerococcus viridans 11 9 9 2 8 1 2
Aerococcus urinae 5 5 5 5 5
Abiotrophia defectiva 5 5 5 5 2
Granulicatella adiacens 10 10 9 9 9 1
Granulicatella elegans 2 1 1 1 1 1 1
Globicatella sanguinis 5 5 5 5 3
Helcococcus kunzii 7 7 7 7 7
Lactococcus lactis 9 9 9 9 9
Lactococcus garviae 1 1 1 1 0
Gemella morbillorum 3 3 3 3 3
Gemella haemolysans 5 4 4 1 4 3 1
Gemella sanguinis 2 2 2 2 2
Pediococcus acidilactici 1 1 1 1 1
Pediococcus pentosaceus 4 4 4 4 2
Facklamia languida 1 1 1 1
Facklamia hominis 1 1 1 1 1
Vagococcus sp. 6 6 0 6 0
Weissella viridescens 1 1 1 1 1
SubTotal n (%) 94 90 (95.75%) 83 (88.29%) 4 (4.25%) 89 (94.6%) 61 (64.89%) 5 (5.32%)
Total n (%) 190 186 (97.89%) 179 (94.21%) 4 (2.10%) 185 (97.37%) 154 (81.05%) 5 (2.63%)

aTable format adapted from reference [3]; bID: identification; cNO ID: not reliable identification