TABLE 1.
OMIM statistics
| Entry class | Symbol | July 18, 2008 | April 6, 2021 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of entries by category | Number of entries by category | ||||||||||
| Autosomal | X‐linked | Y‐linked | Mitochondrial | TOTAL | Autosomal | X‐linked | Y‐linked | Mitochondrial | TOTAL | ||
| Gene | * | 11,766 | 542 | 48 | 37 | 12,394 | 15,616 | 747 | 51 | 37 | 16,451 |
| Gene and phenotype | + | 354 | 30 | 0 | 0 | 384 | 27 | 0 | 0 | 0 | 27 |
| Phenotype description, molecular basis known | # | 2119 | 200 | 2 | 26 | 2346 | 5642 | 356 | 5 | 34 | 6037 |
| Mendelian phenotype or locus, molecular basis unknown | % | 1483 | 137 | 5 | 0 | 1625 | 1412 | 112 | 4 | 0 | 1528 |
| Mainly phenotypes with suspected Mendelian basis | Null (no symbol) | 1942 | 140 | 2 | 0 | 2084 | 1656 | 102 | 3 | 0 | 1761 |
| Total | 17,667 | 1048 | 57 | 63 | 18,835 | 24,353 | 1317 | 63 | 71 | 25,804 | |