. Author manuscript; available in PMC: 2012 Dec 1.

Published in final edited form as: Ann Behav Med. 2011 Dec;42(3):321–333. doi: 10.1007/s12160-011-9294-9

Table 2.

Correlations between concurrent symptom changes during pre-chemotherapy intervals

	Average daily fatigue	Average daily depression	Time in bed at night	Sleep efficiency	WASO	Percent daytime sleep	Daytime activity	Nighttime activity	Dichotomy index (I/O)
Average daily fatigue	1.00
Average daily depression	.44^**	1.00
Time in bed at night	.03	.03	1.00
Sleep efficiency	−.05	−.05	−.05	1.00
WASO	−.05	.09	.28^**	−.52^**	1.00
Percent daytime sleep	.07	.29^**	.10	−.09	.07	1.00
Daytime activity	−.14	−.23^*	−.07	.04	.01	−.81^**	1.00
Nighttime activity	.01	.11	.20	−.48^**	.55^**	−.06	.09	1.00
Dichotomy index (I/O)	.06	.19	.21	−.36^**	.46^**	.22	−.16	.73^**	1.00

WASO minutes awake after sleep onset

p <.05,

^**

p<.01