Table 4.

Stepwise Ordinal Logistic Regression Model Reflecting Odds Ratios (OR) and 95% Confidence Intervals (95% CI) of Associations between 100% Increase in Dietary Variables and Non-restorative Sleep

Variable	Category	OR (95% CI)	P
COVARIATES FORCED INTO THE MODEL
Number of Foods		1.01 (1.00, 1.03)	0.12
Energy (kcal) per 100		1.00 (0.99, 1.01)	0.93
Income	< $20,000	1.01 (0.80, 1.28)	0.90
	$20-$25,000	0.92 (0.68, 1.24)	0.59
	$25-$35,000	0.96 (0.75, 1.24)	0.77
	$35-$45,000	0.84 (0.64, 1.09)	0.19
	$45-$55,000	0.98 (0.74, 1.28)	0.86
	$55-$65,000	0.87 (0.59, 1.28)	0.48
	$65-$75,000	0.96 (0.72, 1.27)	0.77
	>$75,000	Reference
Education	Less Than High School	0.77 (0.60, 0.97)	0.03
	High School	1.02 (0.82, 1.27)	0.87
	Some College	1.23 (1.01, 1.50)	0.04
	College Graduate	Reference
Diet versus Usual	More	1.06 (0.77, 1.47)	0.72
	Less	1.07 (0.88, 1.30)	0.52
Race/Ethnicity	White	Reference
	Hispanic	0.51 (0.42, 0.62)	<.001
	Black	0.57 (0.47, 0.69)	<.001
	Other	0.77 (0.57, 1.04)	0.09
Male Gender		0.66 (0.56, 0.78)	<.001
BMI		1.01 (1.00, 1.02)	0.15
Exercise		1.00 (1.00, 1.00)	0.96
Age		0.98 (0.97, 0.98)	<.001
Special Diet		1.40 (0.94, 2.06)	0.09
Weight loss diet		0.73 (0.47, 1.13)	0.16
Low fat/Low cholesterol diet		0.58 (0.35, 0.95)	0.03
Low salt/ sodium diet		1.36 (0.82, 2.25)	0.23
Diabetic Diet		0.75 (0.44, 1.27)	0.29
Alcohol (log)		0.95 (0.90, 1.00)	0.06
Depression	Several Days	0.15 (0.09, 0.23)	<.001
	Nearly Half the Days	0.35 (0.22, 0.56)	<.001
	All the Time	0.44 (0.26, 0.76)	0.003
	Not at All	Reference
CONTRIBUTORS OF UNIQUE VARIANCE
Butanoic (log ratio)		1.09 (1.00, 1.19)	0.04
Calcium (log)		0.81 (0.67, 0.98)	0.03
Vitamin C (log)		0.92 (0.86, 0.99)	0.02
Total Plain Water Drank Yesterday (log)		0.98 (0.95, 1.00)	0.09
Moisture (log)		1.41 (1.15, 1.71)	0.001
Cholesterol (log)		1.10 (1.00, 1.21)	0.05