Table 1.
Characteristics of individuals overall and within three categories of TV viewing and computer use
| 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) |
Values are means (standard deviations) or percentages, unless otherwise indicated