Table 4.

Correlations between IVR recall ratings and aggregated ED ratings for morning reports (n = 83)

	Correlation			Wald test for difference between correlations
PSQI items	3-day	7-day	28-day	χ2 (df = 2)
Time gone to bed at night	.83	.91	.95	20.02***
Time gotten up in the morning	.88	.88	.89	0.19
Sleep latency	.81	.88	.89	5.75
Duration of sleep	.74	.69	.82	8.02*
Trouble sleeping because …	.79	.80	.79	0.13
… couldn’t fall asleep	.68	.81	.84	7.32*
… woke up at night	.85	.90	.91	5.23
… had to use bathroom	.90	.86	.84	4.20
… trouble breathing	.89	.94	.86	9.54**
… coughed/snored	.82	.82	.83	0.08
… felt too hot	.91	.49	.68	29.69***
… felt too cold	.88	.78	.94	20.95***
… of bad dreams	.83	.87	.90	5.35
Sleep medication taken	.90	.97	.95	11.98**
Sleep quality rating	.75	.69	.79	3.77

^*Note: p < .05,

^**p < .01,

^***p < .001.