Out of 57 AFA positive sera,36,38 and 30 (63 2%,66 7% and 52 6%) were positive in AKA,APF and HLA DR4 tests,respectively.

• APF同时阳性的有 38例 ,重叠率为 6 6 7%25 ; HLA DR4同时阳性的有 30例 ,重叠率为 5 2 6%25。