“…In addition, we found that patients with higher symptom burden had lower FEV1/FVC value and needed more oxygen therapy, consistent with previous studies (Carvalho‐Jr et al, 2018; Ghobadi, Ahari, Kameli, & Lari, 2012). All these findings are physiologically expected and have been well‐documented in previous studies (Christensen et al, 2016; Ding, Judge, Small, Bent‐Ennakhil, & Siddiqui, 2018; Miravitlles & Ribera, 2017). Increasing age influences medication adherence (Acharya & Sharma, 2019; Krauskopf et al, 2015; Shrestha et al, 2015).…”