The psychological impact of COVID-19 in a socio-politically unstable environment: protective effects of sleep and gratitude in Lebanese adults

Table 2 Means and standard deviations of mental health variables

	M	SD	Median	Skewness	Kurtosis	Kolmogorov–Smirnov
	M	SD	Median	Skewness	Kurtosis	d-statistic	P value
PSS	23.22	6.54	23.00	− 0.19	− 0.35	0.067	0.001
GAD-7	10.57	5.48	10.00	0.13	− 0.87	0.091	< 0.001
PHQ-9	11.17	6.33	10.00	0.51	− 0.34	0.092	< 0.001
IES-22	31.20	18.67	28.00	0.40	− 0.47	0.073	< 0.001
PSQi	6.15	3.47	5.50	0.77	0.53	0.131	< 0.001
GQ-6	31.88	6.74	33.00	− 0.61	− 0.08	0.097	< 0.001

Perceived Stress Scale [PSS], Generalized Anxiety Disorder [GAD-7], Patient Health Questionnaire [PHQ-9] and Impact of Events Scale [IES-22] as well as Pittsburg Sleep Quality Index [PSQI] and Gratitude Questionnaire [GQ-6]

ISSN: 2050-7283