Table 3 Geographical distribution of genetic types
From: Retinitis pigmentosa and allied conditions today: a paradigm of translational research
Country and reference | Non-syndromic RP (n) | adRP (%) | arRP (%) | xlRP (%) | Syndromic RP (%) |
|---|---|---|---|---|---|
Spain [55] | 1,717 | 15 | 34 | 7 | 41 (3 unclassified) |
France [56] | 153 | 19 | 35 | 4.1 | 41.3 |
The Netherlands [57] | 575 | 22.4 | 30.1 | 10.4 | 37.1 |
Switzerland [1] | 153 | 9 | 90 | 1 | - |
Germany [58] | 250 | 25.2 | 16.4 | 10 | 48.4 |
UK [59] | 300 | 39 | 15 | 25 | 21 |
USA [60] | 138 | 22 | 10 | 14 | 37 |
USA [61] | 489 | 14.1 | 13.7 | 7 | 65.2 |
Japan [62] | 1,091 | 2.1 | 40.1 | Â | 43.2 |
Japan [63] | 434 | 16.9 | 25.2 | 1.6 | 56.3 |
China [64] | 150 | 13.3 | 67.3 | 2.7 | 16.7 |
South Africa [65] | 63 | 21 | 15 | 10 | 54 |
USA [66] | 68 | 6 | 13 | 7 | 74 |