Table 5.

Estimation of Age Effects on Subjective Minus Objective Sleep Duration (Hours) for Weekends Only, Using Linear Mixed Effects Model With Random Intercepts Accounting for Clustering by Household, With Proxy Status and Demographic Variables, Survey of the Health of Wisconsin, 2014–2017

	Proxy Reported				Self-Reported
Characteristic	Model 1		Model 2		Model 1		Model 2
	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI	Estimate	95% CI
Age, years	0.02	−0.09, 0.1	0.02	−0.09, 0.1	0.08	(−0.1, 0.3)	0.04	−0.2, 0.3
Sex
Male			−0.1	−0.5, 0.3			−0.3	−1.1, 0.4
Female			0.00	Referent			0.0	Referent
Race/ethnicity
White			0.00	Referent			0.00	Referent
Black			0.4	0.3, 1.2			0.1	−1.1, 1.4
Hispanic			−0.3	−1.3, 0.8			−0.6	−2.0, 0.9
Other			−0.6	−1.4, 0.3			−2.2	−3.8, −0.6
Household income per person, per $1,000			−0.01	−0.03, 0.005			0.003	−0.03, 0.03
Rural/urban status
Rural			−0.2	−0.7, 0.3			−0.6	−1.4, 0.3
Urban			0.00	Referent			0.00	Referent
BMI percentile			0.003	−0.004, 0.01			0.003	−0.01, 0.02

Abbreviations: BMI, body mass index; CI, confidence interval.