| Phase I | Phase II | ||
---|---|---|---|---|
 | Cases | Controls | Cases | Controls |
Age (years) | 45 ± 11.4 (SD) | 46 ± 9.7 (SD) | 45 ± 9.1 (SD) | 45 ± 9.7 (SD) |
Male, % | 66.8 (239/358) | 43.1 (271/629) | 72.8 (155/213) | 77.8 (179/230) |
IgA+*, % | 95.3 (341/358) | 44.5 (280/629) | 100 (213/213) | 100 (230/230) |
Total | 358 | 629 | 213 | 230 |