| Chinese workers benzene exposure study of Hematopoietic and lymphproliferative diseases | ||||||
| http://ehpnet1.niehs.nih.gov/docs/1996/Suppl-6/linet.html#results | ||||||
| Exposed | 74828 | |||||
| Non exposed | 35805 | |||||
| Exposed | Pathology | Medical record | Other | Total | Percent | In 100,000 |
| Acute myeloid leukemia | 21 | 1 | 1 | 23 | 0.0003074 | 30.73716 |
| Acute lymphoblastic leukemia | 4 | 0 | 1 | 5 | 0.0000668 | 6.681991 |
| Chronic myeloid leukemia | 7 | 1 | 1 | 9 | 0.0001203 | 12.02758 |
| Aplastic anemia | 7 | 0 | 2 | 9 | 0.0001203 | 12.02758 |
| Myelodysplastic syndrome | 7 | 0 | 0 | 7 | 0.0000935 | 9.354787 |
| Agranulocytosis | 2 | 0 | 0 | 2 | 0.0000267 | 2.672796 |
| Non Hodgkin lymphoma | 11 | 3 | 3 | 17 | 0.0002272 | 22.71877 |
| Multiple myeloma | 1 | 0 | 0 | 1 | 0.0000134 | 1.336398 |
| Non exposed | ||||||
| Acute myeloid leukemia | 4 | 0 | 0 | 4 | 0.0001117 | 11.17162 |
| Acute lymphoblastic leukemia | 1 | 0 | 0 | 1 | 0.0000279 | 2.792906 |
| Chronic myeloid leukemia | 1 | 1 | 0 | 2 | 0.0000559 | 5.585812 |
| Aplastic anemia | 0 | 0 | 0 | 0 | 0.0000000 | 0 |
| Myelodysplastic syndrome | 0 | 0 | 0 | 0 | 0.0000000 | 0 |
| Agranulocytosis | 0 | 0 | 0 | 0 | 0.0000000 | 0 |
| Non Hodgkin lymphoma | 3 | 0 | 0 | 3 | 0.0000838 | 8.378718 |
| Multiple myeloma | 1 | 0 | 0 | 1 | 0.0000279 | 2.792906 |
| Ratio | ||||||
| Acute myeloid leukemia | 2.75136 | |||||
| Acute lymphoblastic leukemia | 2.392487 | |||||
| Chronic myeloid leukemia | 2.153238 | |||||
| Aplastic anemia | Not calculable | |||||
| Myelodysplastic syndrome | Not calculable | |||||
| Agranulocytosis | Not calculable | |||||
| Non Hodgkin lymphoma | 2.711485 | |||||
| Multiple myeloma | 0.478497 | |||||
| Note: Aplastic anemia and MDS does not exist in the non exposed group of workers. | ||||||