Table 2.

Mean differences across selected variables in insomnia.

Study variables	Total (n, %)	Normal (Mean ± SD)	Insomnia (Mean ± SD)	F value	p-value
Age	26.94 ± 9.63	27.08 ± 9.80	26.23 ± 8.69	10.374	0.001
Total Comorbidity	0.30 ± 0.61	0.28 ± 0.59	0.40 ± 0.66	55.744	<0.001
Fear of COVID-19	21.30 ± 6.01	20.67 ± 5.85	24.57 ± 5.73	603.610	<0.001
Knowledge about COVID-19	11.48 ± 2.29	11.45 ± 2.28	11.63 ± 2.31	7.965	0.005
Preventive behavior towards COVID-19	4.22 ± 0.72	4.22 ± 0.73	4.24 ± 0.68	1.079	0.299