Exposure to glyphosate in a recent meta-analysis of five case-controlled studies and one cohort study was found to increase the risk of non-Hodgkin’s lymphoma (NHL). The case studies were conducted using sensitivity analyses to evaluate the exposure classifications, and how the summary estimates were affected by dormant phases. The strongest link between glyphosate and NHL was found using the highest reported exposure levels in conjunction with estimates from analyses in the cohort study with a 20-year lag [RR = 1.41 (95% CI 1.13–1.76)] and a 15-year lag [RR = 1.25 (95% CI 1.01–1.25)] were included. The report concluded that exposure level coupled with the latency period affected the results of meta-analyses of glyphosate exposure and developing NHL.
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