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Table 2 Comparison of test performance in mumps positive patients tested by more than one testing modality

From: Laboratory testing and phylogenetic analysis during a mumps outbreak in Ontario, Canada

Positive mumps test (denominator) Comparator test positivity (numerator)
  Buccal rRT-PCR Urine rRT-PCR Any rRT-PCR Any virus culture IgM IgG seroconversion
Buccal rRT-PCR positive   14/27 (51.9%) 33/33 (100%) 29/33 (87.9%) 8/24 (33.3%) 4/23 (17.4%)
Urine rRT-PCR positive 14/17 (82.4%)   19/19 (100%) 15/18 (83.3%) 8/14 (57.1%) 3/25 (12.0%)
Any rRT-PCR positive 33/40 (82.5%) 19/36 (52.8%)   37/45 (82.2%) 13/31 (41.9%) 6/30 (20.0%)
Any virus culture positive 29/33 (87.9%) 15/29 (51.7%) 37/39 (94.9%)   9/27 (33.3%) 4/30 (13.3%)
IgM positive 8/16 (50.0%) 8/14 (57.1%) 13/19 (68.4%) 9/17 (52.9%)   10/90 (11.1%)
IgG seroconversion 4/8 (50.0%) 3/10 (30.0%) 6/10 (60%) 4/9 (44.4%) 10/23 (43.5%)  
  1. rRT-PCR real-time reverse-transcription polymerase chain reaction