Multiple mechanisms of action and diet as impossible influencing factors on quality of life and sleep among medical students: a cross-section study
Authors: Bai Xue , Wang Zitong , Li Jinfeng , Zhang Jian , Zhang Song 
Published: May 2023

Abstract
Introduction:
The ratio of poor sleep quality and life is one of the most common complaints among college students, and medical students had a higher ratio than ordinary college students. However, research on sleep quality and living among Inner Mongolian medical students was scarce. The primary goals of this study were to look into the incidence of sleep and life symptoms and many methods of action and diet involved in medical students of Inner Mongolia in China.
Methods
A cross-sectional study was done on 1181 university students, ages 16 to 27. They were evaluated using an anonymous, self-administered questionnaire and demographic factors from the Pittsburgh Sleep Quality Index (PSQI) questionnaire and the 36-item Short Form Health Survey (SF-36). The questionnaire was assessed using Cronbach’s alpha coefficient, Kaiser-Meyer-Olkin (KMO), and Bartlett's sphericity. Sleep quality and life disorders, which include demographic and behavioral information, were assessed using the t-test and one-way ANOVA. Also, statistically significant components (P < 0.05) were used for multiple linear regressions progressively fitted to sleep quality and life predictors. SPSS 26.0 software was used for statistical data analysis, P < 0.05 being significantly different.
Results
One thousand one hundred eighty-one students completed the questionnaire. The incidence of poor sleep quality was 20.7%, whereas life symptoms were for physical PCS and mental MCS summary measures of 1.7% and 3.3% among medical students. The mean ± standard deviation sleep quality and life scores were 5.54 ± 2.64 and 76.65 ± 10.90, 87.23 ± 11.00, respectively. The specific contributions of these two reliable and valid scales (PCS and MCS) were 62.06% and 62.12%. The results revealed that gender, family history of cardiovascular disease, profession, grade, the daily meal taken at a fixed time, grade, eating habits, specific exercise forms, number of daily meals, and intake of other snacks were found to influence PSQI score (P < 0.05). And the factors that influenced the PCS and MCS dimensions of the SF-36 were profession, grades, age, number of daily meals, if there was a fixed daily meal, eating habits, and specific exercises. The results also showed that “the average number of daily meals,” “daily intake of other snacks,” “if there was a fixed daily meal,” “specific exercise forms,” and “family history of cardiovascular disease” were independent influencing factors of PSQI total score. The results of the two portions of SF-36 revealed that “grade,” “average number of daily meals,” “if there was a fixed daily meal,” and “specific exercise forms” influenced on PCS dimension score. “The number of daily meals,” “daily eating habits,” and “specific exercise forms” all had an impact on MCS dimensions score.
Conclusions
The present research findings revealed a high prevalence of poor sleep quality and life issues among the proposed medical students. The country should implement a tailored intervention for particular risk variables identified to enhance sleep quality and health well-being among university students as they confront unclear future problems.