Table 2.

Insomnia Severity Index score data

	n=194
Global score of the Insomnia Severity Index	9.43 ± 5.84 (2-25)
Severity of insomnia
0-7: no insomnia	71 (36.6%)
8-14: sub-threshold insomnia	72 (37.1%)
15-21: clinical insomnia (moderate)	45 (23.2 %)
22-28: clinical insomnia (severe)	6 (3.1%)

Values are expressed as the mean ± SD (range) or number of patients (%).