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Table 4 The association between visual impairment and sleep duration stratified by race-ethnic groups

From: Association between visual impairment and sleep duration: analysis of the 2009 National Health Interview Survey (NHIS)

Visual impairment

White

Black

OR (95% C.I.)

< 6 hours

> 8 hours

< 6 hours

> 8 hours

Model A

1.9 (1.6-2.2)

2.4 (2.0-2.8)

2.2 (1.6-3.2)

2.2 (1.4-3.4)

Model B

1.8 (1.6-2.1)

1.8 (1.5-2.1)

2.2 (1.5-3.1)

1.8 (1.1-2.1)

Model C

1.6 (1.4-1.9)

1.6 (1.3-1.9)

1.9 (1.3-2.8)

1.6 (1.0-2.5)

  1. 6-8 hours was the reference group.
  2. Model A: Unadjusted.
  3. Model B: Adjusted for age, sex, income.
  4. Model C: Adjusted for Model B and BMI, hypertension, diabetes, heart disease, depression.