Table 1.
Demographics | Overall (%) |
Mean Sleep Duration (hours) (SD) (N=260) |
P- value* |
Mean Carotid CIMT (mm) (SD) (N=260) |
P- value* |
---|---|---|---|---|---|
All male participants (N=260) | 5.8(1.1) | 0.74(0.13) | |||
Age | |||||
37 – 41 years | 14.2 | 5.7(1.3) | 0.52 | 0.68(0.11) | <0.01 |
42 – 46 years | 30.8 | 5.7(1.2) | 0.74(0.11) | ||
47 – 52 years | 55.0 | 5.8(1.0) | 0.76(0.14) | ||
Race | |||||
Black | 36.5 | 5.2(1.1) | <0.01 | 0.75(0.12) | 0.32 |
White | 63.5 | 6.1(0.9) | 0.73(0.14) | ||
Education | |||||
Less than high school degree | 7.0 | 5.1(1.3) | <0.01 | 0.79(0.10) | 0.01 |
High school degree | 22.8 | 5.4(1.4) | 0.75(0.14) | ||
Some college | 15.1 | 5.5(1.1) | 0.77(0.16) | ||
College graduate | 55.2 | 6.1(0.9) | 0.72(0.12) | ||
Covariates | |||||
Body mass index | |||||
≥30 kg/m2 (obese) | 30.0 | 5.6(1.2) | 0.26 | 0.77(0.13) | <0.01 |
25 – 29.9 kg/m2(overweight) | 45.0 | 5.8(1.0) | 0.74(0.11) | ||
<25 kg/m2(normal) | 25.0 | 5.8(1.2) | 0.70(0.15) | ||
Waist circumference | |||||
>90 cm | 63.9 | 5.8(1.1) | 0.53 | 0.76(0.12) | <0.01 |
≤90 cm | 36.2 | 5.7(1.2) | 0.71(0.14) | ||
Systolic blood pressure | |||||
>120 mmHg | 41.5 | 5.5(1.2) | <0.01 | 0.78(0.15) | <0.01 |
≤120 mmHg | 58.5 | 6.0(1.0) | 0.71(0.11) | ||
Diastolic blood pressure | |||||
>80 mmHg | 19.6 | 5.4(1.3) | <0.01 | 0.79(0.17) | <0.01 |
≤80 mmHg | 80.4 | 5.9(1.0) | 0.73(0.12) | ||
High-density lipoprotein cholesterol | |||||
<52 mg/dL (below median) | 70.7 | 5.8(1.1) | 0.67 | 0.74(0.13) | 0.53 |
≥52 mg/dL (above median) | 29.3 | 5.7(1.1) | 0.73(0.13) | ||
Low-density lipoprotein cholesterol | |||||
>109 mg/dL (above median) | 51.8 | 5.7(1.1) | 0.87 | 0.75(0.14) | 0.29 |
≤109 mg/dL (below median) | 48.2 | 5.8(1.1) | 0.73(0.12) | ||
Diabetes | |||||
Yes | 6.5 | 5.3(1.6) | 0.08 | 0.77(0.10) | 0.42 |
No | 93.5 | 5.8(1.1) | 0.74(0.13) | ||
Alcohol | |||||
>7 drinks/week | 36.9 | 5.7(1.2) | 0.60 | 0.75(0.14) | 0.02 |
1–7 drinks/week | 42.8 | 5.9(0.9) | 0.74(0.14) | ||
Non-drinker | 20.3 | 5.6(1.2) | 0.69(0.10) | ||
Smoking | |||||
Current smoker | 28.9 | 5.4(1.3) | 0.02 | 0.78(0.16) | 0.09 |
Former smoker | 33.3 | 5.7(1.0) | 0.74(0.12) | ||
Never smoker | 37.8 | 5.9(1.0) | 0.73(0.13) | ||
Depression (mean CES-D) | |||||
CES-D≥16 | 15.8 | 5.6(1.1) | <0.01 | 0.77(0.13) | 0.01 |
CES-D<16 | 84.2 | 5.8(1.1) | 0.73(0.13) |
Abbreviations: CIMT, intima-media thickness
p-values reflect t-test or ANOVA test for those with 3 or more categories