[Perceived stress level and its related factors in Chinese adult residents aged 18-65 in 15 provinces (autonomous regions and municipalities) in 2015].

To investigate the perceived stress prevalence of adult residents aged 18-65 in 15 provinces(autonomous regions and municipalities) and its related factors. Adults aged 18 to 65 years, with middle school education or above and complete demographic and socioeconomic characteristics, lifestyle, disease history and physical measurements were selected as study subjects from the database of Nutritional Status and Health Transition of Chinese Residents Project in 2015. Chinese perceived stress scale(CPSS) was used to evaluate the perceived stress level of participants, and percentile regression model was used to analyze the correlation between related factors and perceived stress. A total of 6679 subjects were enrolled in this study. The mean and median of perceived stress scores were 22. 6 and 24. 0, respectively. The percentile regression model showed that age was positively associated with perceived stress in the 5 th, 25 th, 50 th and 95 th percentiles, and the difference between the two groups decreased with the increase of perceived stress score(P5, β=1. 31, 95%CI 0. 38-2. 24; P25, β=0. 91, 95%CI 0. 28-1. 53). Compared with the control group, adults with junior high school education had a high level of perceived stress in higher percentiles(P50, β=0. 81, 95%CI 0. 32-1. 30; P75, β=0. 42, 95%CI 0. 11-0. 72; P95, β=0. 62, 95%CI 0. 06-1. 18). Perceived stress levels in the 50 th, 75 th and 95 th percentiles were lower in the married adults than in the control group(P50, β=-0. 81, 95%CI-1. 40--0. 23; P75, β=-0. 39, 95%CI-0. 68--0. 10; P95, β=-0. 95, 95%CI-1. 79--0. 12). In the 5 th, 25 th, 50 th and 75 th percentiles, the perceived stress level of no workers is higher than that of workers, and the difference decreases with the increase of perceived stress score(P5, β=1. 31, 95%CI 0. 32-2. 31; P75, β=0. 53, 95%CI 0. 35-0. 71). Income level showed a positive association with perceived stress across the entire conditional perceived stress distribution(P<0. 05). People with low levels of physical activity had higher levels of perceived stress in the 25 th, 50 th, and 75 th percentiles than the control group(P25, β=1. 15, 95%CI 0. 41-1. 90; P50, β=1. 09, 95%CI 0. 62-1. 56; P75, β=0. 28, 95%CI 0. 07-0. 49). Urbanization level and alcohol consumption and other factors had influence on perceived stress in different percentile(P<0. 05). No significant correlation was found between housing ownership, smoking, sleep duration and perceived stress. The perceived stress level of adult residents aged 18 to 65 in 15 provinces of China is on the high level on the whole, which is correlated with age, marital state employment, annual per capita income, physical activity level and other factors.