Table 4.
Total error for each laboratory summed across all loci (all errors observed divided by total number of alleles genotyped; number of loci genotyped by each laboratory is shown in parenthesis)
| Laboratory | Total error (summed for all loci) | Mean across loci (±SE) | ||
|---|---|---|---|---|
| Allelic mismatches | Number of alleles | e a | e a | |
| (A) | ||||
| Lab A (12) | 5 | 3,244 | 0.002 | 0.002 ± 0.001 |
| Lab B (15) | 98 | 5,120 | 0.019 | 0.019 ± 0.010 |
| Lab C (15) | 55 | 4,938 | 0.011 | 0.011 ± 0.003 |
| Lab D (15) | 35 | 5,146 | 0.007 | 0.007 ± 0.002 |
| Lab E (5) | 271 | 1,662 | 0.163 | 0.157 ± 0.140 |
| Lab F (6) | 12 | 2,256 | 0.005 | 0.006 ± 0.002 |
| Lab G (15) | 20 | 5,184 | 0.004 | 0.004 ± 0.002 |
| Lab H (16) | 38 | 5,506 | 0.007 | 0.008 ± 0.002 |
| Lab I (15) | 431 | 4,190 | 0.103 | 0.090 ± 0.050 |
| Lab J (15) | 378 | 5,198 | 0.073 | 0.072 ± 0.026 |
| Lab K (15) | 880 | 4,958 | 0.177 | 0.175 ± 0.060 |
| Lab L (15) | 467 | 5,100 | 0.092 | 0.090 ± 0.050 |
| (B) | ||||
| Lab A (12) | 5 | 3,244 | 0.002 | 0.002 ± 0.001 |
| Lab B (15) | 55 | 5,120 | 0.011 | 0.011 ± 0.003 |
| Lab C (15) | 55 | 4,938 | 0.011 | 0.011 ± 0.003 |
| Lab D (15) | 29 | 5,146 | 0.006 | 0.006 ± 0.002 |
| Lab E (5) | 24 | 1,662 | 0.014 | 0.015 ± 0.006 |
| Lab F (6) | 11 | 1,904 | 0.006 | 0.006 ± 0.002 |
| Lab G (15) | 20 | 5,184 | 0.004 | 0.004 ± 0.002 |
| Lab H (16) | 35 | 5,510 | 0.006 | 0.008 ± 0.002 |
| Lab I (15) | 78 | 4,264 | 0.018 | 0.022 ± 0.007 |
| Lab J (15) | 221 | 5,202 | 0.042 | 0.042 ± 0.009 |
| Lab K (15) | 139 | 5,136 | 0.027 | 0.027 ± 0.009 |
| Lab L (15) | 47 | 5,112 | 0.009 | 0.009 ± 0.002 |
See text for calculation of e a. Mean allelic error rates are also given, calculated across individual loci for each laboratory. A, Before calibration; B, after calibration