Research Report 192, Part 2, describes the second part of the Multicenter Ozone Study in oldEr Subjects (MOSES), led by Drs. David Rich and Mark Frampton of the University of Rochester Medical Center in Rochester, New York. Part 1 of the MOSES study, Effects of Exposure to Low Concentrations of Ozone on Respiratory and Cardiovascular Outcomes, was published in 2017; Part 2 presents additional analyses.