Aim of the study was to evaluate the associations
among poor sleep, anxiety and depression in relation
to age and year of studying among the students.
Methods. The study sample consisted of 400 Klaipeda
State University of Applied Sciences students
(96.8% female) and 393 The Lithuanian Maritime
Academy students (78.9% male), from 18 to 46 years
of age. Pittsburgh Sleep Quality Index (PSQI)
was used for subjective sleep quality evaluation.
Hospital Anxiety and Depression (HAD) scale was
used to identify depression and anxiety. PSQI score
≤ 5 was evaluated as good sleep quality; > 5 – poor
sleep. HAD score from 0 to 7 was evaluated as no
depression or anxiety, score >7 indicated depression
and/or anxiety. Additional questions about respondents’
age, gender, study programme and year of the
studying were used. The Chi-square test or Fisher
exact tests were used to estimate association between
categorical variables. Student’s t test was used to
compare means and z criteria was used to test the
difference in two population proportions. Binary logistic
regression analysis was performed to evaluate
the factors influencing poor sleep.
Results. Health sciences students, as compared
to maritime students, had higher prevalence of
poor sleep (69.8% vs 45.0%) and anxiety (55.5%
vs 41.7%). Depression score was higher among
the students with poor sleep, as compared to good
sleep, respectively 4.38 vs 3.20 (20 yrs), 5.16 vs
3.29 (21 yrs), 5.38 vs 3.22 (≥ 22 yrs). Anxiety score
was higher among the students with poor sleep, as
compared to good sleep, respectively 7.89 vs 6.11
(18-19 yrs), 8.73 vs 6.12 (20 yrs), 10.40 vs 6.51 (21
yrs), 10.58 vs 6.40 (≥ 22 yrs). The risk of poor sleep
was significantly decreased by the studying marine
sciences (OR=0.365) and increased by anxiety
(OR=1.172), p<0.001.
Conclusions. Poor sleep and anxiety were more prevalent
among the students of Health Sciences, as
compared to students of Lithuanian Maritime Academy.
Anxiety and depression mean scores were significantly
higher among the students who had poor
sleep, as compared to the ones who had good sleep
in all age groups, during the first, second and third
year of studies. Risk of poor sleep was increased
by anxiety, however maritime studies had positive
effect on sleep quality.