“…More salient predictors of failed smoking cessation or relapse include: younger age at which cancer patients started smoking [Waggoner, 2010; Schnoll, 2003, Gritz, 1999], concurrent symptoms or diagnosis of depression [Waggoner, 2010,; Berg, 2013; Pirl, 2004; Boyes, 2011; Martinez, 2009], second hand smoke exposure (e.g. from spouse, home, or workplace) [Waggoner, 2010; Kim, 2015; Kashigar, 2013; Eng 2014], decreased desire to quit [Waggoner, 2010, Schnoll, 2013, Park 2011], and concurrent alcohol use [Kim, 2015; Kashigar, 2013].…”