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| hs1,2 genotypes | Total IgA | IgA1 | IgA2 |
|---|---|---|---|
| AA | 2·00 ± 0·18 (24) | 1·64 ± 0·15 (21) | 0·41 ± 0·10 (15) |
| AB | 2·26 ± 0·21 (27) | 1·75 ± 0·17 (25) | 0·48 ± 0·07 (21) |
| BB | 2·38 ± 0·22 (24) | 1·95 ± 0·20 (21) | 0·38 ± 0·04 (18) |
The number in parentheses indicates the number of healthy individuals in each group. P > 0·05 for AA patients as compared to AB or BB patients (Mann–Whitney U-test).
