Abstract
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is more likely to occur in the elderly population, and these patients often become depressed. It has been recognized that psychological disorders are not conducive to the control of many diseases. Thus, this study aims to determine whether alleviating depression can delay the progression of IPF and frailty in elderly patients with IPF. METHODS: IPF patients over 60 years old were included in the study. None had a prior history of psychological disorders. All developed depression after being diagnosed with IPF. During the 12-month follow-up, some patients received anti-depression interventions and the rest didn't. Depression, IPF, frailty and peripheral inflammation at baseline and after follow-up were evaluated by indicators and scales such as BDI-II, FVC %pred, 6MWT, mMRC, CFS, TFI, SGRQ, K-BILD, IL-6, and TNF-α. Multivariate logistic regression was employed for data analysis. RESULTS: There were 213 elderly patients with IPF. Among the 89 patients who received anti-depression interventions, the above-mentioned indicators and scales did not deteriorate during the follow-up period (P > 0.05). Among the remaining 124 patients, the FVC %pred, and 6MWT levels decreased, and the mMRC grade, CFS, TFI, SGRQ and K-BILD scores, and peripheral IL-6 and TNF-α levels increased during the follow-up period (P < 0.05). DISCUSSION: Compared with non-intervened IPF patients, those receiving anti-depression interventions seemed to maintain a certain stability in IPF, frailty, and peripheral inflammation over a period. CONCLUSION: Improving depression may help delay the deterioration of patients' IPF and frailty at certain stages. TRIAL REGISTRATION: Registration on UMIN-CTR. REGISTRATION NUMBER: UMIN000057161. Date of registration: February 27th, 2025.