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| Source | Case (n) | Control (n) |
|---|---|---|
| Northern California Kaiser Permanente | 1,069 | 637 |
| Southern California Kaiser Permanente | 645 | 636 |
| U.S. Pediatric MS Network | 792 | 413 |
| IMSGC ImmunoChip | 803 | 462 |
| Genetic Epidemiology Research on Aging | 0 | 16,168 |
| Total | 3,320 | 18,327 |
Starting number of cases and controls for each dataset source. n = number of individuals.
