Table 1.
Case control groups used in the study
| Study Group | cases (n) | Average age at diagnosis (range) |
% males (cases) |
controls (n) |
Study type |
|---|---|---|---|---|---|
| Iceland alla | 1,487 | 67 (16-97) | 53 | 36,256 | Population based |
| Iceland genotypedb | 848 | 68 (20-95) | 50 | 36,256 | Population based |
| The Netherlands, Nijmegen | 552 | 62 (25-93) | 81 | 1,832 | Population based |
| Spain, Zaragoza | 548 | 65 (18-92) | 87 | 1,432 | Hospital-based |
| USA, Denver | 196 | 66 (29-85 ) | 71 | 838 | Hospital-based |
|
| |||||
| Total | 2,783 | 40,358 | |||
a
Total number of Icelandic subjects; genotyped directly or by familial imputation.
b
Directly genotyped Icelandic subjects only