Table 2.

Relationship Between Subjective Memory Complaints and Sleep Parameters (n = 351)

	Memory complaint itemsa						MAC-Q
	Person’s name	Telephone/Zip codes	Objects	Specific facts	Purchasing items	Memory now vs. past	Totalb
PSQI components
Sleep quality	−0.02	0.04	0.12*	0.09	0.08	0.15**	0.07
Sleep latency	0.05	0.06	0.19**	0.12*	0.06	0.11*	0.12*
Sleep duration	0.07	0.08	0.10	0.10	0.10	0.15**	0.11*
Sleep efficiency	−0.06	−0.08	0.04	0.04	−0.02	−0.07	−0.06
Sleep disturbances	0.01	−0.01	−0.00	0.09	−0.02	0.05	0.03
Sleep medicine	−0.10	−0.07	0.04	0.06	−0.07	−0.01	−0.03
Daytime dysfunction	0.03	0.03	0.01	0.07	0.00	0.14**	0.10
PSQI Global Score	−0.07	0.01	0.14**	0.16**	0.04	0.14**	0.09

Note: PSQI = Pittsburgh Sleep Quality Index.

*p < .05. **p < .01. ^aSpearman rho correlations conducted to examine association between the memory complaint item and sleep measure. ^bPearson correlations conducted to examine association between memory complaint total and sleep measures. MAC-Q represents the Memory Complaint Questionnaire.