TY - JOUR AU - Hsu, Min-Fang AU - Lee, Kang-Yun AU - Lin, Tsung-Ching AU - Liu, Wen-Te AU - Ho, Shu-Chuan PY - 2021 DA - 2021/01/19 TI - Subjective sleep quality and association with depression syndrome, chronic diseases and health-related physical fitness in the middle-aged and elderly JO - BMC Public Health SP - 164 VL - 21 IS - 1 AB - As a complex phenomenon, sleep quality is difficult to objectively define and measure, and multiple factors related to sleep quality, such as age, lifestyle, physical activity, and physical fitness, feature prominently in older adult populations. The aim of the present study was to evaluate subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) and to associate sleep quality with health-related physical fitness factors, depressive symptoms, and the number of chronic diseases in the middle-aged and elderly. SN - 1471-2458 UR - https://doi.org/10.1186/s12889-021-10206-z DO - 10.1186/s12889-021-10206-z ID - Hsu2021 ER -