Table 3. Sleep scores by demographic subgroups.

	Age			P		Sex			P		Education			P
	65-75	76-85	≥86		Women		Men			≤12		13-15	≥16
Sleep quality score	(n=310)	(n=402)	(n=231)	.031	(n=716)		(n=227)	.287		(n=255)		(n=247)	(n=441)		<.0001
	6.1 (2.83)	5.8 (2.81)a	6.3(2.69)		6.1(2.82)		5.7(2.66)			6.5(2.91)		6.2(2.82)	5.7(2.65) a
Sleep apnea risk score	(n=309)	(n=396)	(n=227)a	.015	(n=709)		(n=223)	.904		(n=255)		(n=245)	(n=432)		.169
	.5 (.50) a	.4 (.49)	4(.50)		.5(.50)		.5(.50)			.5(.5)		.5(.5)	.4(.049)
RLS symptoms	(n=70)	(n=70)	(n=62)	.225	(n=200)		(n=46)	.229		(n=71)		(n=70)	(n=105)		.144
	4.6 (1.95)	4.2 (1.89)	4.7 (1.85)		4.5(1.88)		4.1(2.01)			4.5(1.83)		4.7(2.09)	4.2(1.81)

Data are mean (SD) unless noted otherwise.

a. Indicates a mean statistically significantly different from other groups, which did not differ.

Mean differences for one-way ANOVAs are based on Tukey-Kramer post hoc analysis. Chi-square employed for Sleep apnea risk. RLS, restless leg syndrome.