Objective: To describe the distribution of childhood malignancies in government funded schools in relation to the presence of rlrs.Method: Retrospective descriptive study among government funded schools, in towns with a resident population of over 6000. 62 schools, with 24,697 children, were surveyed for new childhood malignancies in 1990 and 1991.Results: Among the 19,570 children in schools without rlr, 2 malignancies were reported (1 ALL and 1 brain tumor). In the 5,127 with rlr there were 6 malignancies (2 ALL, 2 lymphomas, 1 brain tumor, and 1 bone sarcoma).In schools with rlr, children have a relative risk of cancer of 11.45 compared with children in non-rlr schools, 95% CI 2.31, 56.81. The rate in non-rlr schools is within the world range for the incidence of childhood cancer. Using a Fisher's exact test, this association was found to be statistically significant at the 1 % Level.
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