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Table 10 Spearman’s rank correlation coefficient between the AIS, ESS, and ISI results and the respondents’ age

From: Sleep disorders among educationally active elderly people in Bialystok, Poland: a cross-sectional study

 

60–70 years

71–80 years

81–90 years

AIS

ESS

ISI

AIS

ESS

ISI

AIS

ESS

ISI

rs

p

rs

p

rs

p

rs

p

rs

p

rs

p

rs

p

rs

p

rs

p

AIS

–

–

0.204

0.044*

0.799

< 0.001*

–

–

0.341

0.003*

0.812

< 0.001*

–

–

0.285

0.425

0.752

0.012*

ESS

0.204

0.044*

–

–

0.310

0.002*

0.341

0.003*

–

–

0.376

0.001*

0.285

0.425

–

–

0.143

0.693

ISI

0.799

< 0.001*

0.310

0.002*

–

–

0.812

< 0.001*

0.376

0.001*

–

–

0.752

0.012*

0.143

0.693

–

–

  1. Abbreviations: AIS Athens Insomnia Scale, ESS Epworth Sleepiness Scale, ISI Insomnia Severity Index, rs Spearman’s rank correlation coefficient, p p-value, * statistically significant value