Sedentary behaviors, psychological status, and sleep quality in Chinese university students

We investigated the independent associations of 3 types of sedentary behavior with depression, anxiety, and sleep quality among 214 Chinese university students. Self-reported sedentary behavior was assessed by the length of time that participants spent on television viewing/computer use, and smartphone use. We used the Self-Rating Depression Scale (SDS) and the Self-Rating Anxiety Scale (SAS) to evaluate depressive status and anxiety symptoms, respectively, and the Pittsburgh Sleep Quality Index (PSQI) to assess sleep quality. The results showed that longer smartphone use was associated with worse SDS, SAS, and PSQI scores. There was no association between the time spent on television viewing and computer use, and depression, anxiety, and poor sleep quality.