TABLE 2.

ELISA and PEG-IC IgG and IgM results

CategorySerum ELISA resultAll samplesaFirst sample onlyb
PEG-IC IgG ELISA (no. positive/serum IgG ELISA)PEG-IC IgM ELISA (no. positive/serum IgM ELISA)PEG-IC IgG ELISA (no. positive/serum IgG ELISA)PEG-IC IgM ELISA (no. positive/serum IgM ELISA)
All samplesNegative11/447/426/355/28
Positive54/5721/3335/3812/19
Indeterminatec6/111/25/100/1
PTLDSNegative7/113/133/52/5
Positive26/2610/1614/144/7
Indeterminatec2/21/20/1
Early LDNegative1/30/30/2
Positive1/23/42/3
Indeterminatec0/10/00/0
All LymedNegative10/184/215/92/8
Positive40/4119/2921/2210/15
Indeterminatec3/41/22/30/1
OspA vaccineesNegative1/93/113/11
Positive14/162/22/2
Indeterminatec3/60/00/0
Healthy volunteersNegative0/170/100/9
Positive0/00/20/2
Indeterminatec0/10/00/0
  • a Includes all results.

  • b Uses only the first complete sample pair per patient or control. Where there are no data in these columns, they are the same as those indicated in the “All samples” column.

  • c Refers to samples with equal numbers of positive and negative results (in cases where the sample was tested more than once).

  • d Refers to all patients with Lyme disease and includes posttreatment Lyme disease syndrome, early Lyme disease, Lyme arthritis, and neurologic Lyme disease patients.