. Author manuscript; available in PMC: 2014 Jan 4.

Published in final edited form as: Oncol Nurs Forum. 2013 Mar;40(2):10.1188/13.ONF.171-179. doi: 10.1188/13.ONF.171-179

Table 3.

Correlations Among Caregiver Characteristics and Sleep Variables

Variable	TST	WASO	Sleep Quality^a	Sleep Latency^b
Age^b	−0.07	−0.02^*	−0.03	−0.11
Gender^b	0.21^*	0.00	−0.1	−0.06
Race^b	−0.15	0.11	−0.11	0.09
Years of education	0.06	0.05	0.07	0.02
Relationship to CR	0.00	−0.16	−0.08	−0.06
Employment status	0.1	−0.19^*	0.03	0.11
Smoking status^b	−0.12	0.02	0.13	0.15
Number of comorbidities	−0.09	−0.04	−0.01	−0.14
Body mass index	−0.12	0.07	−0.05	−0.02
CR tumor type	−0.02	0.03	−0.09	−0.09
CR Karnofsky score	0.22^*	−0.21^*	−0.04	0.06
POMS-Anxiety	0.25^**	−0.24^*	0.39^**	0.16
CES-D	−0.01	−0.06	−0.16	0.00

p < 0.05;

^**

p < 0.01

Sleep quality item from Pittsburgh Sleep Quality Index

Spearman’s rho reported

CES-D—Center for Epidemiologic Studies–Depression; CR—care recipient; POMS—Profile of Mood States; TST—total sleep time; WASO—wake after sleep onset