Table A2.
Frequencies of Specimens Analyzed for Each Marker by Stage
| Characteristic | All Patients |
Stage II |
Stage III |
|||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| No. of patients | 3,002 | 1,738 | 1,264 | |||
| Patient cases analyzed for MMR | ||||||
| MMR-I | 1,515 of 1,852 | 81.8 | 736 of 939 | 78.4 | 779 of 913 | 85.3 |
| MMR-D | 330 of 1,852 | 17.8 | 199 of 939 | 21.2 | 131 of 913 | 14.4 |
| MMR noninformative | 7 of 1,852 | 0.4 | 4 of 939 | 0.4 | 3 of 913 | 0.3 |
| Patient cases informative for MMR | ||||||
| MMR-I | 1,515 of 1,845 | 82.1 | 736 of 935 | 78.7 | 779 of 910 | 85.6 |
| MMR-D | 330 of 1,845 | 17.9 | 199 of 935 | 21.3 | 131 of 910 | 14.4 |
| Patient cases analyzed for 18qLOH | ||||||
| 18q intact | 150 of 955 | 15.7 | 71 of 353 | 20.1 | 79 of 602 | 13.1 |
| 18qLOH present | 667 of 955 | 69.8 | 222 of 353 | 62.9 | 445 of 602 | 73.9 |
| 18qLOH noninformative | 138 of 955 | 14.5 | 60 of 353 | 17.0 | 78 of 602 | 13.0 |
| Patient cases informative for 18qLOH | ||||||
| 18q intact | 150 of 817 | 18.4 | 71 of 293 | 24.2 | 79 of 524 | 15.1 |
| 18qLOH present | 667 of 817 | 81.6 | 222 of 293 | 75.8 | 445 of 524 | 84.9 |
| Patient cases not analyzed for MMR or LOH18q | 1,150 of 3,002 | 38.3 | 799 of 1,738 | 50.0 | 351 of 1,264 | 27.8 |
Abbreviations: 18qLOH, loss of heterozygosity at chromosomal location 18q; MMR, mismatch repair; MMR-D, mismatch repair deficiency; MMR-I, mismatch repair intact.