Table 2

Comparison of NG-MLVA with NG-MAST and full-length porB sequencing using sets of N. gonorrhoeae isolates obtained from different anatomical sites of 118 patients and from 54 couplesa

GroupNG-MLVA profilesNo. of patients or couplesbNo. (%) of patients or couplesc
NG-MAST sequence typesporB sequence typesNG-MAST and porB sequence types
IdenticalNonidenticalIdenticalNonidenticalIdenticalNonidentical
PatientsNLV+SLV10290 (88.2)12 (11.8)87 (85.3)15 (14.7)82 (80.4)7 (6.9)
DLV76 (85.7)1 (14.3)6 (85.7)1 (14.3)6 (85.7)1 (14.3)
MLV91 (11.1)8 (88.9)1 (11.1)8 (88.9)1 (11.1)8 (88.9)
CouplesNLV+SLV4741 (87.2)6 (12.8)44 (93.6)3 (6.4)39 (83.0)1 (2.1)
DLV33 (100)03 (100)03 (100)0
MLV404 (100)04 (100)04 (100)
  • a A couple consisted of a patient and a sexual partner. NG-MLVA, N. gonorrhoeae multiple-locus variable-number tandem-repeat analysis; NLV, no locus variant; SLV, single-locus variant; DLV, double-locus variant; MLV, multilocus variant; NG-MAST, N. gonorrhoeae multiantigen sequence typing.

  • b Number of patients or couples that had sets of isolates that were considered identical (NLV+SLV) or had DLVs or MLVs by NG-MLVA typing.

  • c Numbers and percentages of patients or couples with different NG-MLVA types that were identical or nonidentical using NG-MAST and porB sequencing.