Appendix 1 table 1 Further analysis of alanine aminotransferase (U/l) data by hospital and year of testing
| Year | Hospital 1 | Hospital 210-1-150 | Hospital 3 | |
| 1996 | 30 (15) | 27 (14) | 50 (22) | |
| (n=99) | (n=118) | (n=120) | ||
| 1997 | 31 (12) | 29 (14) | 60 (45) | |
| (n=89) | (n=102) | (n=21) | ||
| 1998 | 32 (17) | 49 (16) | 48 (15) | |
| (n=105) | (n=111) | (n=115) | ||
↵10-1-150 Laboratory used in 1996 and 1997 was A, and in 1998 it was B.