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Table 1 Characteristics of JHS participants (n = 3410) by category of television viewing

From: Sedentary behavior and subclinical atherosclerosis in African Americans: cross-sectional analysis of the Jackson heart study

 

Television viewing

 

Variable

<2 h/day

2–4 h/day

>4 h/day

P-Trend

 

(n = 1111)

(n = 1247)

(n = 1052)

 

Age (years)

52.8 ± 12.7

53.2 ± 12.4

54.7 ± 13.1

<0.001

Male sex (%)

36.5

37.4

37.8

0.534

Education < HS (%)

15.4

16.5

20.3

0.003

Income < $50,000 (%)

68.0

67.0

72.6

0.023

Fulltime Employment (%)

56.8

57.6

50.9

0.006

Heavy alcohol drinking (%)a

4.0

4.1

3.2

0.330

Current Smoking (%)

13.6

11.4

13.8

0.945

Energy Intake (kcal/d)

2235.5 ± 1360.6

2228.1 ± 1229.8

2209.5 ± 1227.9

0.890

History of MI (%)

4.9

4.6

4.9

0.934

Statin Use (%)

10.5

10.6

12.1

0.245

Diabetes (%)b

18.3

19.2

21.4

0.069

Hypertension (%)c

55.4

60.8

59.3

0.058

BMI (kg/m2)

31.5 ± 7.0

32.1 ± 7.4

31.8 ± 7.6

0.133

Obese (%)

51.6

56.5

52.6

0.579

Total Cholesterol (mg/dL)

197.6 ± 39.5

199.0 ± 41.5

201.0 ± 40.3

0.178

HDL Cholesterol (mg/dL)

51.9 ± 14.6

51.4 ± 14.4

51.5 ± 14.5

0.638

LDL Cholesterol (mg/dL)

125.9 ± 37.4

126.3 ± 36.9

129.0 ± 36.6

0.139

eGFR <60 ml/min/1.73 m2 (%)

5.6

5.0

6.2

0.559

Leisure-time MVPA (min/week)

72.6 ± 117.0

70.4 ± 112.6

67.2 ± 111.3

0.547

Level of MVPA (%)d

   

0.265

 Poor

45.9

45.8

49.2

 

 Intermediate

33.1

33.5

30.2

 

 Ideal

21.0

20.7

20.5

 
  1. Data presented as mean ± standard deviation or percentage
  2. HDL high density lipoprotein, HS high school, MI myocardial infarction, MVPA moderate to vigorous physical activity
  3. aDefined as >14 drinks/week for men; >7 drinks/week for women
  4. bDefined as fasting glucose ≥126 mg/dL, HbA1c ≥6.5 %, or use of diabetic medication
  5. cDefined as blood pressure ≥140/90 mmHg and/or use of antihypertensive medication
  6. dDefined according to American Heart Association Life’s Simple 7 criteria for minutes/week of moderate or vigorous physical activity. Poor physical activity: 0 min/week of leisure-time moderate or vigorous physical activity. Intermediate physical activity: >0 and <150 min/week of leisure-time moderate physical activity; and >0 and <75 min/week of leisure-time vigorous physical activity. Ideal physical activity: ≥150 min/week of leisure-time moderate physical activity; or ≥75 min/week of leisure-time vigorous physical activity