TABLE II.

Bivariate Associations With 1-Year Sleep Score.

Variable		Parameter Estimate	Standard Error	P Value
Age (decades)		3.8	0.9	<.001
SF-36 pain (10 points), 1 yr		4.35	0.3	<.001
	No.	Mean Sleep Score	SD	P Value
Xerostomia, 1 yr				<.001
Not at all	96	78.6	17.1
Slightly	78	70.7	18.2
Moderately	85	71.8	18.6
A lot	122	69.0	20.1
Extremely	76	53.5	21.4
Radiation				.378
Yes	389	68.9	20.9
No	68	71.3	19.1
Chemotherapy				.194
Yes	284	68.3	21.0
No	173	70.9	19.9
Surgery (any)				.974
Yes	240	69.3	20.6
No	217	69.2	20.7
Primary site surgery				.732
Yes	162	68.8	20.2
No	295	69.5	20.8
Neck dissection				.796
Yes	191	69.6	20.9
No	266	69.1	20.4
Feeding tube, 1 yr				.005
Yes	77	63.2	20.3
No	380	70.5	20.5
Tracheotomy,1 yr				.001
Yes	17	53.3	25.8
No	440	69.9	20.2
Cancer site				.348
Pharynx*	247	70.3	20.7
Oral cavity/sinus	94	66.7	20.2
Larynx	116	69.1	20.7
Stage 4				.452
Yes	266	68.7	21.8
No	191	70.1	18.8
Comorbidity				.068
None/mild	321	70.4	20.3
Moderate/severe	136	66.6	21.0
Depressed, 1 yr				<.001
Yes	176	54.7	18.2
No	281	78.4	16.3
Smoked past month, 1 yr				<.001
Yes	86	57.6	20.7
No	371	72.0	19.6
Alcohol problem, 1 yr				<.001
Yes	49	54.4	20.6
No	408	71.1	19.9
Sex				.040
Male	353	70.3	20.8
Female	104	65.6	19.6

Short Form-36 = SF-36; SD = standard deviation.

^†The SF-36 Bodily Pain Score and the MOS Sleep Score are measured on a scale of 0–100 with 100 being the best score.

^*Pharynx cancer site includes Oropharynx, Hypopharynx, Nasopharynx, and Unknown Primary.