Table 4. Matching results using the indirect stepwise algorithm, validated on AAML1031.
Note: The number of unique match from the direct merge method was 151 (91.5%).
| Step 1 | Step 2 | Step 3 | Step 4 | ||
|---|---|---|---|---|---|
| Number of patients available for match | 165 | 36 | 14 | 8 | |
| Number of patients with a unique match (%) | 129 (78.2%) | 22 (61.1%) | 6 (42.9%) | 0 (0%) | |
| Number of patients with no match (%) | 30 (18.2%) | 7 (19.4%) | 0 (0%) | 1 (12.5%) | |
| Number of patients matched with multiple PHIS (%) | 6 (3.6%) | 7 (19.4%) | 8 (57.1%) | 7 (87.5%) | |
| Number of patients matched with multiple COG records (%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | |
| Cumulative number of unique matches (%) | 129 (78.2%) | 151 (91.5%) | 157 (95.2%) | 157 (95.2%) | |
| Criterion 1 * | |||||
| Number of unique matches that are concordant with the direct method (%) | 124 (96.1%) | 22 (100%) | 4 (66.7%) | 0 (NA) | |
| Cumulative number of unique matches that are concordant with the direct method (%) | 124 (79.0%) | 146 (93.0%) | 150 (95.5%) | 150 (95.5%) | |
| Criterion 2 ** | |||||
| Number of unique matches that are concordant with the direct method (%) | 129 (100%) | 22 (100%) | 4 (66.7%) | 0 (NA) | |
| Cumulative number of unique matches that are concordant with the direct method (%) | 129 (82.2%) | 151 (96.2%) | 155 (98.7%) | 155 (98.7%) | |
* 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.