Tap chi Y Hoc Thanh Pho Ho Chi Minh

Background
– Objectives: Poor quality of
sleep (QoS) will lead to reduced alertness, lack of concentration which cause
occupational accidents, increase the risk of chronic disease and reduced
quality of life. The literature review shows that the prevalence of quality of
sleep among students is relatively low, especially medical students. Therefore,
this study was conducted to determine the prevalence of poor quality of sleep
and factors related to its among preventive medicine students at UMP HCMC 2015.

Method:
A cross-sectional study was
conducted on 482 students of Preventive Medicine, Ho Chi Minh City Medicine and
Pharmacy University by the entire sampling techniques. The subjects agreed to
participate in the study will complete a structured questionnaire about SES,
smoking habits, alcohol consumption, use of caffeinated beverages, academic
pressure, social psychological pressure and PSQI. Chi-squared test or Fisher
used to compare the proportion of poor QoL of subjects with different
characteristics. Results reported prevalence ratio (PR) and 95% confidence
intervals (95% CI). Model GLM (General Linear Model) also was conducted to
determine the factors related to QoS among students.

Results: There were 59,1% students in total 482 students
participating in the survey had poor quality of sleep. The results from the
multivariate model revealed that the fifth year students (PR = 0.72; 95% CI:
0.53 to 0.98) had the proportion of poor QoS lower than students in the first
year. The percentage of poor QoS in students who have average learning outcome
(PR = 0.73; 95% CI: 0.55 to 0.97), above average (PR = 0.68; 95% CI: 0.51 –
0.90) and fairly good (PR = 0.66; 95% CI: 0.47 to 0.92) were lower than
students who have weak academic performance. In addition, students who have
both academic pressure and social psychological pressure had the proportion of
poor QoS higher than students who do not have any pressure (PR = 1.16; 95% CI:
1.03 to 1.32).

Conclusion: The percentage of poor QoS among preventive
medicine students is relatively high. There is statistically significant
association between QoS and the academic year, school performance and the types
of pressures.

Key
words: quality of sleep,
preventive medicine student, PSQI.