Concern exists about the potential chronic neurological effects among aircrew of exposure to chemical contaminants from engine oil in aircraft cabin air. We evaluated mortality from neurodegenerative diseases among 11,311 former US flight attendants. Vital status was ascertained through 2007, and life table analyses were conducted to obtain standardized mortality ratios (SMRs). Amyotrophic lateral sclerosis … More Mortality from ALS Neurodegenerative Diseases in Flight Attendants