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Table 1 Characteristics of individuals overall and within three categories of TV viewing and computer use

From: Genetic susceptibility, screen-based sedentary activities and incidence of coronary heart disease

Variables

All

TV viewing

Computer use

≤1h/day

2–3h/day

≥4h/day

≤1h/day

2–3h/day

≥4h/day

Age, years

56.6 (8.0)

54.5 (8.0)

56.2 (8.0)

58.9 (7.4)

56.7 (8.0)

57.1 (8.0)

54.8 (8.1)

Sex, n (%)

 Men

169,944 (45.0)

33,316 (44.4)

87,103 (45.5)

47,525 (44.6)

121,287 (41.4)

35,008 (57.8)

11,649 (60.5)

 Women

205,082 (55.0)

41,645 (55.6)

104,452 (54.5)

58,985 (55.4)

171,890 (58.6)

25,588 (42.2)

7604 (39.5)

Body mass index, kg/m2

27.3(4.7)

25.8 (4.2)

27.2 (4.5)

28.5 (5.0)

27.1 (4.6)

28.0 (4.9)

28.3 (5.1)

Smoking status, %

 Never

207,454 (55.6)

45,862 (61.2)

108,976 (56.8)

52,616 (49.4)

166,034 (56.6)

31,513 (52.0)

9907 (51.4)

 Previous

129,536 (34.7)

23,178 (30.9)

65,618 (34.3)

40,740 (38.3)

99,253 (33.9)

23,323 (38.5)

6960 (36.2)

 Current

36,036 (9.7)

5,921 (7.9)

16,961 (8.9)

13,154 (12.4)

27,890 (9.5)

5,760 (9.5)

2386 (12.4)

Employment, %

 Unemployed

218,047 (58.4)

54,041 (72.1)

121,299 (63.3)

42,707 (40.1)

173,776 (59.3)

31,407 (51.8)

12,864 (66.8)

 Employed

154,979 (41.6)

20,920 (27.9)

70,256 (36.7)

63,803 (59.9)

119,401 (40.7)

29,189 (48.2)

6389 (33.2)

Townsend Deprivation Index

−1.64 (2.9)

−1.69 (2.8)

−1.83 (2.8)

−1.26 (3.1)

−1.68 (2.9)

−1.55 (2.9)

−1.33 (3.1)

Alcohol consumption, %

 Never

11,000 (3.0)

2,252 (3.0)

5,064 (2.6)

3,684 (3.5)

8,939 (3.1)

1,551 (2.6)

510 (2.6)

 Previous

11,745 (3.1)

2,263 (3.0)

5,168 (2.7)

4,314 (4.0)

8,893 (3.0)

2,109 (3.5)

743 (3.9)

 (<3times/week)

178,219 (47.8)

31,970 (42.7)

90,484 (47.3)

55,765 (52.4)

142,312 (48.5)

27,201 (44.9)

8706 (45.2)

 Current (≥3times/week)

172,062 (46.1)

38,476 (51.3)

90,839 (47.4)

42,747 (40.1)

133,033 (45.4)

29,735 (49.0)

9294 (48.3)

Salt-adding behaviour

 Never/rarely

212,554 (57.0)

46,690 (62.3)

110,834 (57.9)

55,030 (51.6)

167,637 (57.2)

34,086 (56.2)

10,831 (56.3)

 Sometimes

103,119 (27.6)

19,310 (25.8)

53,217 (27.8)

30,592 (28.7)

81,102 (27.7)

16,732 (27.6)

5285 (27.4)

 Usually

41,833 (11.2)

6,979 (9.3)

20,652 (10.8)

14,202 (13.4)

32,341 (11.0)

7,255 (12.0)

2273 (11.6)

 Always

15,520 (4.2)

1,982 (2.6)

6,852 (3.5)

6,686 (6.3)

12,097 (4.1)

2,523 (4.2)

900 (4.7)

Oily fish consumption

 Never

39,408 (10.6)

6,815 (9.1)

18,952 (9.9)

13,641 (12.8)

30,745 (10.5)

6,395 (10.6)

2268 (11.8)

 <Once/week

126,007 (33.7)

24,611 (32.8)

64,393 (33.6)

37,003 (34.7)

98,465 (33.6)

20,803 (34.3)

6739 (35.0)

 Once/week

142,894 (38.3)

29,542 (39.4)

74,586 (38.9)

38,766 (36.4)

113,082 (38.6)

22,888 (37.8)

6924 (36.0)

 >Once/week

64,717 (17.4)

13,993 (18.7)

33,624 (17.6)

17,100 (16.1)

50,885 (17.3)

10,510 (17.3)

3322 (17.2)

Coffee intake (cups/day)

2.07 (2.1)

2.05 (2.0)

2.08 (2.0)

2.09 (2.2)

2.03 (2.0)

2.22 (2.1)

2.33 (2.4)

Fruit and vegetable intake

1.59 (1.2)

1.72 (1.2)

1.60 (1.2)

1.47 (1.1)

1.59 (1.2)

1.57 (1.1)

1.54 (1.2)

Red meat intake, days/week (average)

0.90 (0.5)

0.82 (0.5)

0.90 (0.5)

0.98 (0.6)

0.89 (0.5)

0.95 (0.6)

0.94 (0.6)

Hypertension medication use, %

18.6%

11.9%

17.4%

25.6%

18.2%

20.8%

18.6%

Cholesterol-lowering medication use, %

14.6%

8.7%

13.3%

21.2%

14.0%

17.3%

15.7%

Glucose-lowering medication use

0.9%

0.6%

0.7%

1.2%

0.8%

1.1%

1.3%

Sleep

 ≤5 h/day

18,047 (4.8)

2,864 (3.8)

8,482 (4.4)

6,701 (6.3)

13,794 (4.7)

3,093 (5.1)

1205 (6.3)

 6 h/day

69,250 (18.6)

13,633 (18.2)

35,346 (18.5)

20,271 (19.0)

53,309 (18.1)

12,009 (19.8)

4077 (21.2)

 7 /day

148,422 (39.8)

33,455 (44.6)

78,927 (41.2)

36,040 (33.8)

117,415 (39.9)

23,728 (39.2)

7557 (39.2)

 8 h/day

109,990 (29.5)

21,044 (28.1)

56,668 (29.6)

32,278 (30.3)

87,800 (29.9)

17,215 (28.4)

5184 (26.9)

 ≥9 h/day

27,317 (7.3)

3965 (5.3)

12,132 (6.3)

11,220 (10.6)

21,629 (7.4)

4551 (7.5)

1230 (6.4)

Moderate-to-vigorous physical activity (min/day)

56.8 (71.0)

58.0 (69.4)

58.0 (71.7)

53.6 (70.6)

58.5 (72.4)

52.4 (66.8)

43.6 (57.7)

Polygenic risk score for CHD

17.3 (0.6)

17.3 (0.6)

17.3 (0.6)

17.3 (0.6)

17.3 (0.6)

17.3 (0.6)

17.3 (0.6)

  1. Values are means (standard deviations) or percentages, unless otherwise indicated