Table 2. Culture Results by Method From Specimens Tested, Grouped by Specimen Type and Auramine Stain Result.
| Specimen Type | Total No. Tested | Culture-Positive Specimensa | No. Culture Positive by MODS | No. Culture Positive by LJ | P b | κ Score |
|---|---|---|---|---|---|---|
| GA (all) | 321 | 22 | 19 (11 by MODS only) | 11 (3 by LJ only) | .06 | 0.51 |
| GA auramine positive | 8 | 8 | 7 (1 by MODS only) | 7 (1 by LJ only) | 1.00 | NA |
| GA auramine negative | 313 | 14 | 12 (10 by MODS only) | 4 (2 by LJ only) | .04 | 0.24 |
| NPA (all) | 314 | 12 | 11 (4 by MODS only) | 8 (1 by LJ only) | .04 | 0.73 |
| NPA auramine positive | 4 | 4 | 4 | 4 | 1.00 | 1.00 |
| NPA auramine negative | 310 | 8 | 7 (4 by MODS only) | 4 (1 by LJ only) | .38 | 0.54 |
| Stool (all) | 292 | 4 | 3 (2 by MODS only) | 2 (1 by LJ only) | 1.00 | 0.40 |
| Stool auramine positive | 4 | 3 | 3 (2 by MODS only) | 1 | .50 | 0.20 |
| Stool auramine negative | 288 | 1 | 0 | 1 (1 by LJ only) | NA | NA |
| All specimens | 927 | 38 | 33 (17 by MODS only) | 21 (5 by LJ only) | .02 | 0.58 |
| All auramine positive | 16 | 15 | 14 (3 by MODS only) | 12 (1 by LJ only) | .63 | 0.20 |
| All auramine negative | 911 | 23 | 19 (14 by MODS only) | 9 (4 by LJ only) | .03 | 0.35 |
Figures in parentheses show the number of specimens that were culture positive by the indicated method only, ie, not culture positive by the other method used. NA indicates not applicable.
a
Number of specimens of the indicated type that were culture positive by at least 1 of the 2 culture methods used.
b
McNemar’s test, comparing isolation rate by MODS and isolation rate by LJ.