. 2019 Aug 19;19:225. doi: 10.1186/s12877-019-1248-2

Table 8.

Spearman’s rank correlation coefficient between the AIS, ESS, and ISI results and the respondents’ group of origin

	UTA						UHS/UPP
	AIS		ESS		ISI		AIS		ESS		ISI
	r_s	p	r_s	p	r_s	p	r_s	p	r_s	p	r_s	p
AIS	–	–	0.339	< 0.001*	0.794	< 0.001*	–	–	0.145	0.217	0.794	< 0.001*
ESS	0.339	< 0.001*	–	–	0.405	< 0.001*	0.145	0.217	–	–	0.212	0.070
ISI	0.794	< 0.001*	0.405	< 0.001*	–	–	0.794	< 0.001*	0.212	0.070	–	–

Abbreviations: AIS Athens Insomnia Scale, ESS Epworth Sleepiness Scale, ISI Insomnia Severity Index, r_s Spearman’s rank correlation coefficient, p p-value, UHS University of Healthy Senior, UPP University of Psychogeriatric Prophylactics, UTA University of the Third Age, * statistically significant value