Sleep in post-COVID-19 recovery period and its impact on different domains of quality of life

Table 5 Correlation between score of insomnia severity index, global PSQI Score and other variables

	Score of insomnia severity index		Global PSQI Score
	r	p	r	p
Age	0.028	0.537	− 0.031	0.482
Days after recovery from COVID 19	0.985	≤ 0.001*	0.897	≤ 0.001*
Physical functioning	− 0.840	≤ 0.001*	− 0.773	≤ 0.001*
Role limitation due to physical health	− 0.198	≤ 0.001*	− 0.186	≤ 0.001*
Role limitation due to emotional problems	− 0.164	≤ 0.001*	− 0.130	0.004*
Energy/ fatigue	0.010	0.828	0.013	0.772
Emotional well being	0.005	0.909	0.019	0.672
Social functioning	0.042	0.348	− 0.056	0.215
Pain	0.045	0.320	− 0.033	0.457
General health	− 0.397	≤ 0.001*	− 0.384	≤ 0.001*
Global PSQI Score	− 0.888	≤ 0.001*	–	–

*Statistically significant results
R reference group, F ANOVA test, t student t test, PSQI Pittsburgh sleep quality index