TABLE 3.
Microbiologic analyses of samples by cohort and time point (ITT population)c
| Visit (swab) |
Cohort | Age group | Analysis method, na
|
|||||
|---|---|---|---|---|---|---|---|---|
| Seroagglutination | Isolate PCR |
Direct swab PCR |
Isolate WGS |
Isolate LCPA |
MLST | |||
| Visit 1 | 1 | 9th grade | 36 | 36 | 469 | |||
| 11th grade | 21 | 361 | 21 | 21 | 21 | |||
| 2 | University | 87 | 102 | 327 | ||||
| Visit 2 | 1 | 9th grade | 28 | 28 | 339 | |||
| 11th grade | 18 | 363 | 18 | 18 | 18 | |||
| 2 | University | 68 | 77 | 342 | ||||
| Visit 3 | 1 | 9th grade | 33 | 34 | 451 | |||
| College entry | 22 | 356 | 22 | 22 | 22 | |||
| 2 | University | 35 | 39 | 338 | ||||
| Any visitb | 1 | 9th grade | 48 | 533 | 531 | |||
| College entry | 31 | 363 | 31 | 31 | 31 | |||
| 2 | University | 99 | 360 | 359 | ||||
a
n = number of subjects with specified test performed at that visit.
b
n = number of subjects with ≥1 specified test performed at any visit.
c
Abbreviations: ITT, intent-to-treat; LCPA, live cell phenotypic assay; MLST, multilocus sequence typing; WGS, whole-genome sequencing.