Objective: The association between sleep status and lung adenocarcinoma risk was analyzed using long-term follow-up data from 60,443 patients over the period 2016-2022 to provide a reference for exploring the association between sleep status and lung adenocarcinoma development.
Patients and methods: Based on long-term follow-up data, a total of 60,443 people were included. Sleep data collected for the study included insomnia symptoms, lunch break habits, and sleep duration. A sleep score (0-3) was constructed based on difficulty falling asleep, premature awakening and sleep duration. Proportional risk regression models were used to analyze the association between each sleep factor, sleep score and lung cancer risk.
Results: The study population was followed up for 9.9 ± 4.8 years and a total of 307 cases of lung adenocarcinoma were first recorded during the follow-up period. After controlling for potential confounders, the risk ratios (HR) for lung adenocarcinoma in those with difficulties going asleep or waking up too early were 1.12 (95% CI: 1.02-1.14) and 1.07 (95% CI: 1.01-1.11), respectively, compared to those without symptoms of insomnia. The HR for lung adenocarcinoma in those with less than 7 h of sleep [HR = 1.17 (95% CI: 1.05-1.21)] was compared to those with ≥ 7 h of sleep per day. Compared to those with a sleep score of 3 (highest quality sleep), those with a sleep score of 2, 1 and 0 corresponded to HR of 1.06 (95% CI: 1.01-1.12), 1.11 (95% CI: 1.09-1.18) and 1.15 (95% CI: 1.01-1.32) respectively.
Conclusions: Patients who suffer from insomnia or have a short sleep schedule are at increased risk of developing lung cell cancer. Sleep has an important impact on health and improving sleep conditions can reduce the incidence of lung cancer.