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Table 3 Odds Ratios (OR) and 95% Confidence Intervals (CI) from Multivariable Logistic Regression for Sleep Quality, Adjusted for Age and Sex (Unweighted)

From: "Sleep disparity" in the population: poor sleep quality is strongly associated with poverty and ethnicity

Independent Variables

N = 9,533

Model 1

Model 2

Model 3

 

OR

95% CI

OR

95% CI

OR

95% CI

Race -Income

(ref = White, Not Poor)

White, Poor

3.64**

2.98 - 4.45

2.19**

1.76 - 2.72

1.79**

1.43 - 2.24

 

AA, Not Poor

1.50*

1.19 - 1.90

1.25

0.98 - 1.59

1.25

0.97 - 1.60

 

AA, Poor

2.89**

2.34 - 3.57

1.51*

1.18 - 1.92

1.25

0.97 - 1.61

 

Latino, Not Poor

1.45

1.00 - 2.10

1.23

0.85 - 1.79

1.20

0.81 - 1.76

 

Latino, Poor

3.07**

2.41 - 3.90

1.48*

1.11 - 1.96

1.23

0.92 - 1.65

 

Other, Not Poor

1.12

0.63 - 1.99

1.12

0.63 - 2.00

1.11

0.61 - 2.01

 

Other, Poor

2.08

0.93 - 4.62

1.13

0.50 - 2.59

0.95

0.40 - 2.22

Education (ref =< HS grad)

High school graduate

-

-

0.84

0.67 - 1.04

0.94

0.75 - 1.18

 

Some college

-

-

0.63*

0.49 - 0.81

0.74*

0.57 - 0.96

 

College graduate

-

-

0.50**

0.37 - 0.66

0.66*

0.49 - 0.89

 

Post college

-

-

0.42**

0.30 - 0.58

0.57*

0.40 - 0.81

Employment

(ref = Employed)

Unemployed

-

-

1.62*

1.23 - 2.14

1.28

0.96 - 1.70

 

Retired

-

-

1.18

0.90 - 1.53

1.03

0.78 - 1.36

 

Disabled

-

-

3.12**

2.48 - 3.91

1.70**

1.32 - 2.19

 

Other

-

-

1.21

0.92 - 1.61

1.16

0.87 - 1.56

Marital Status

(ref = Married)

Living with partner

-

-

1.64*

1.22 - 2.20

1.46*

1.07 - 1.99

 

Single

-

-

1.20

0.99 - 1.45

1.12

0.92 - 1.36

 

Widow

-

-

1.58*

1.23 - 2.03

1.48*

1.14 - 1.91

 

Other

-

-

1.16

0.92 - 1.46

0.98

0.77 - 1.24

General Health (ref = Excellent)

Good

-

-

-

-

1.31*

1.06 - 1.62

 

Fair

-

-

-

-

2.38**

1.87 - 3.03

 

Poor

-

-

-

-

3.68**

2.71 - 4.98

Mental Illness

(ref = Absent)

Present

-

-

-

-

1.12

0.92 - 1.35

BMI

(ref =≤ 25)

25-30

-

-

-

-

1.06

0.89 - 1.27

 

>30

-

-

-

-

1.2

1.00 - 1.44

Stress Levels

(ref = Low(1-2))

Mild (3-4)

-

-

-

-

1.04

0.79 - 1.35

 

Moderate (5-6)

-

-

-

-

1.11

0.86 - 1.41

 

High (7-8)

-

-

-

-

1.45*

1.13 - 1.87

 

Very high (9-10)

-

-

-

-

3.04**

2.36 - 3.91

Heavy Alcohol Use (ref = No)

Yes

-

-

-

-

1.18

0.84 - 1.65

Smoking (ref = No)

Yes

-

-

-

-

1.28*

1.08 - 1.51

  1. * = p < .05
  2. ** p < .0001
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