Asbestos Surveillance Program Aachen (ASPA): Cancer mortality among asbestos exposed power industry workers.

Background: The time between initial asbestos exposure and asbestos-related disease can span several decades. The Asbestos Surveillance Program aims to detect early asbestos-related diseases in a cohort of 8,565 power industry workers formerly exposed to asbestos.

Research Question: How does asbestos exposure patterns affect cancer mortality and the duration of latency until death?

Methods: A mortality follow-up was conducted with available vital status for 8,476 participants (99 %) and available death certificates for 89.