Table 5.

Comparisons of pain, daytime, and nighttime sleep characteristics by insomnia and total sleep time after adjusting for age and comorbidity.

	Total Sleep Time – PSG
	Q1	Q2	Q3	Q4
	<267.5 min	267.5 – 322.5 Min	322.6 – 392.5 Min	> 392.5 Min
	N (%)	N (%)	N (%)	N (%)
Insomnia	30 (34.9%)	19 (22.1%)	19 (22.1%)	18 (20.9%)
No Insomnia	12 (14.3%)	24 (28.6%)	23 (27.4%)	25 (29.8%)
	Adj. Mean ± Std.Err	Adj. Mean ± Std.Err	Adj. Mean ± Std.Err	Adj. Mean ± Std.Err
Bodily Pain
Insomnia	7.95 ± 0.45	8.18 ± 0.56	5.70 ± 0.56	5.91 ± 0.58
No Insomnia	9.01 ± 0.70	9.64 ± 0.51	8.88 ± 0.51	8.64 ± 0.49
P-value	.2031	.0549	<.0001	.0004
Fatigue
Insomnia	32.11 ± 2.67	32.77 ± 3.33	35.18 ± 3.33	39.73 ± 3.26
No Insomnia	26.22 ± 4.14	22.59 ± 3.46	22.63 ± 3.02	26.50 ± 2.88
P-value	.2345	.0352	.0059	.0028
Sleep Quality
Insomnia	1.77 ± 0.13	1.53 ± 0.16	2.09 ± 0.16	1.93 ± 0.17
No Insomnia	1.07 ± 0.21	0.98 ± 0.15	0.90 ± 0.15	0.84 ± 0.14
P-value	.0051	.0147	<.0001	<.0001
Sleep Medication
Insomnia	0.98 ± 0.20	0.35 ± 0.25	0.86 ± 0.25	1.38 ± 0.26
No Insomnia	0.35 ± 0.31	0.20 ± 0.23	0.17 ± 0.23	0.35 ± 0.22
P-value	.0913	.6636	.0403	.0029
Naps
Insomnia	2.34 ± 0.43	2.67 ± 0.54	3.61 ± 0.54	2.36 ± 0.56
No Insomnia	3.95 ± 0.68	2.86 ± 0.50	2.27 ± 0.49	2.47 ± 0.47
P-value	.0472	.7971	.0650	.8845
Daytime Sleepiness
Insomnia	8.31 ± 0.78	8.87 ± 0.97	9.80 ± 0.97	10.05 ± 1.01
No Insomnia	8.25 ± 1.22	8.54 ± 0.90	7.02 ± 0.89	6.77 ± 0.85
P-value	.9672	.8040	.0357	.0136
Snooze Time
Insomnia	18.16 ± 3.43	18.45 ± 4.37	19.81 ± 4.26	18.82 ± 4.41
No Insomnia	27.38 ± 5.60	11.73 ± 3.94	12.76 ± 3.98	19.09 ± 3.81
P-value	.1629	.2552	.2266	.9620

Note. Adjusted Mean and standard error were estimated from generalized linear model adjusted for age and comorbidity