TABLE 1.

Correlations and partial correlations, controlling for age and education, between ISI and CFQ scores.

Time	Correlation	Partial correlation
T1 (0 month)	0.25****	0.23****
T2 (2 months)	0.35****	0.35****
T3 (6 months)	0.32****	0.32****
T4 (10 months)	0.35****	0.35****
T5 (14 months)	0.34****	0.37****
T6 (18 months)	0.33****	0.33****

ISI, Insomnia Severity Index; CFQ, Cognitive Failures Questionnaires.

****p < 0.0001.