Objective: Novel coronavirus disease 2019 is known to have poor impacts on health with health systems facing serious challenges. Limited information is available on health issues for patients who have recovered from the disease. Our study aims to investigate the extent of sleep disorders in patients who have recovered from the coronavirus disease.
Material and methods: A casecontrol study with 256 patients who had recovered from coronavirus disease 2019 was carried out, with 491 patients enrolled as the control. All participants were 18 years or older, and sleep quality was assessed using the Pittsburgh sleep quality index. Furthermore, sleep latency and hours needed for sleep were calculated. Chi-square and t-test statistical methods were used to analyze the variables.
Results: A total of 215 (84%) recovered patients were associated with poor sleep quality, with 384 patients (78%) in the control group. The PSQI values for recovered and control groups were 8.77±3.7591 and 8.139±3.068, respectively, with a significant p-value of 0.014. Average hours needed for sleep were 6.899±3.7869 and 6.44±1.477 for recovered and control patients, respectively, with a significant p-value of 0.01. The difference in sleep latency was non-significant (p=0.374), with 29.01±39.3702 and 33.520±38.208 minutes for recovered and control patients, respectively.
Conclusion: Sleep disorders were more prevalent among patients who had recovered from COVID-19 than the control group.
Keywords: COVID-19; Circadian Rhythm; Sleep Disorders; Sleep Latency.