Mental health disturbance in preclinical medical students and its association with screen time, sleep quality, and depression during the COVID-19 pandemic

Table 3 The Dunn’s post hoc analysis for sleep quality (PSQI)

Current Mental Health	Mean Rank Difference	Std. Error	Std. Deviation of Mean Rank	Sig.	Adj. Sig.
WCMH-PD	-102.541	28.744	-3.567	0.000	0.002
WCMH-SD	-180.188	26.394	-6.827	0.000	0.000
WCMH-Both	-260.505	24.121	-10.800	0.000	0.000
PD-SD	-77.648	34.509	-2.250	0.024	0.147
PD-Both	-157.964	32.803	-4.816	0.000	0.000
SD-Both	-80.317	30.764	-2.611	0.009	0.054

WCMH = without current mental health disturbances, PD = psychological distress, SD = social dysfunction, Both = with psychological distress and social dysfunction. Each row tests the null hypothesis that the group distributions are equivalent. Asymptotic significance (2-sided tests) is displayed. The significance level is set at 0.05. Significance values were adjusted by Bonferroni correction for multiple tests

ISSN: 1471-244X