Table 3. Matching results using the indirect stepwise algorithm, developed on AAML0531.
Note: The number of unique match from the direct merge method was 383 (92.3%).
| Step 1 | Step 2 | Step 3 | Step 4 | ||
|---|---|---|---|---|---|
| Number of patients available for match | 415 | 211 | 83 | 50 | |
| Number of patients with a unique match (%) | 204 (49.2%) | 128 (60.7%) | 33 (39.8%) | 13 (26.0%) | |
| Number of patients with no match (%) | 204 (49.2%) | 66 (31.2%) | 16 (19.3%) | 16 (32.0%) | |
| Number of patients matched with multiple PHIS records (%) | 5 (1.2%) | 15 (7.0%) | 34 (40.9%) | 21 (42.0%) | |
| Number of patients matched with multiple COG records (%) | 2 (0.4%) | 2 (0.9%) | 0 (0%) | 0 (0%) | |
| Cumulative number of unique matches (%) | 204 (49.2%) | 332 (80.0%) | 365 (88.0%) | 378 (91.1%) | |
| Criterion 1* | |||||
| Number of unique matches that are concordant with the direct method (%) | 198 (97.1%) | 121 (94.5%) | 33 (100%) | 10 (76.9%) | |
| Cumulative number of unique matches that are concordant with the direct method (%) | 198 (52.4%) | 319 (84.4%) | 352 (93.1%) | 362 (95.7%) | |
| Criterion 2** | |||||
| Number of unique matches that are concordant with the direct method (%) | 202 (99.0%) | 122 (95.3%) | 33 (100%) | 12 (92.3%) | |
| Cumulative number of unique matches that are concordant with the direct method (%) | 202 (53.4%) | 324 (85.7%) | 357 (94.4%) | 369 (97.6%) | |
* Criterion 1 considers a match as discordant, if the indirect algorithm yielded a unique match but the direct merge method yielded duplicate matches.
** Criterion 2 considers a match as concordant, if the indirect algorithm yielded a unique match but the direct merge method yielded duplicate matches, and the match in the indirect merge method was among one of the duplicate matches in the direct merge method.