| Screen-time categories (h.day− 1) | |||
---|---|---|---|---|
<2 | 2–3 | 4–5 | >5 | |
Socio-demographics | ||||
 Total n | 65,374 | 204,470 | 95,877 | 25,368 |
 Women, n (%) | 38,977 (59.6) | 110,399 (54.0) | 51,460 (53.7) | 12,519 (49.4) |
 Age (years), mean (SD) | 54.0 (8.0) | 55.5 (8.1) | 57.8 (7.8) | 56.8 (8.2) |
 Deprivation index quintiles, n (%) | ||||
  Lower | 22,447 (34.3) | 74,332 (36.4) | 31,308 (32.7) | 6643 (26.2) |
  Middle | 21,683 (33.2) | 70,242 (34.4) | 32,612 (34.0) | 7515 (29.6) |
  Higher | 21,244 (32.5) | 59,896 (29.3) | 31,957 (33.3) | 11,210 (44.2) |
 Professional qualifications, n (%) | ||||
  College or university degree | 33,304 (55.8) | 72,395 (40.7) | 20,217 (28.2) | 5872 (33.2) |
  A levels/AS levels or equivalent | 7943 (13.3) | 25,182 (14.2) | 9120 (12.7) | 2136 (12.1) |
  O levels/GCSEs or equivalent | 10,408 (17.4) | 45,118 (25.4) | 23,125 (32.3) | 5115 (28.9) |
  CSEs or equivalent | 2230 (3.7) | 11,517 (6.5) | 6666 (9.3) | 1641 (9.3) |
  NVQ or HND or HNC or equivalent | 2840 (4.8) | 13,182 (7.4) | 7388 (10.3) | 1881 (10.6) |
  Other professional qualifications | 2984 (5.0) | 10,603 (6.0) | 5178 (7.2) | 1042 (5.9) |
 Income categories, n (%) | ||||
  Less than £18,000 | 7366 (12.8) | 28,761 (16.1) | 22,871 (28.5) | 7808 (36.8) |
  £18,000 to £29,999 | 11,344 (19.7) | 44,273 (24.8) | 23,569 (29.4) | 5047 (23.8) |
  £30,000 to £51,999 | 15,613 (27.1) | 52,221 (29.3) | 19,823 (24.7) | 4066 (19.2) |
  £52,000 to £100,000 | 16,782 (29.2) | 42,731 (24.0) | 11,718 (14.6) | 3277 (15.4) |
  Greater than £100,000 | 6432 (11.2) | 10,364 (5.8) | 2180 (2.7) | 1025 (4.8) |
 Employment status, n (%) | ||||
  In paid employment or self-employed | 48,674 (75.2) | 134,628 (66.4) | 46,746 (49.2) | 11,612 (46.3) |
  Retired | 11,970 (18.5) | 56,500 (27.9) | 40,443 (42.6) | 9862 (39.3) |
  Looking after home and/or family | 2194 (3.4) | 5578 (2.8) | 2701 (2.8) | 681 (2.7) |
  Unable to work because of sickness or disability | 722 (1.1) | 2180 (1.1) | 2310 (2.4) | 1605 (6.4) |
  Unemployed | 662 (1.0) | 2435 (1.2) | 2117 (2.2) | 1089 (4.3) |
  Doing unpaid or voluntary work | 344 (0.5) | 907 (0.5) | 378 (0.4) | 117 (0.5) |
  Full-time or part-time student | 203 (0.3) | 522 (0.3) | 256 (0.3) | 112 (0.5) |
 Ethnicity, n (%) | ||||
  White | 60,997 (93.3) | 193,700 (94.7) | 90,686 (94.6) | 23,229 (91.6) |
  South Asian | 1806 (2.8) | 4095 (2.0) | 1580 (1.7) | 622 (2.5) |
  Black | 1072 (1.6) | 2994 (1.5) | 1935 (2.0) | 854 (3.4) |
  Chinese | 267 (0.4) | 721 (0.4) | 312 (0.3) | 108 (0.4) |
  Mixed background / others | 1232 (1.9) | 2960 (1.5) | 1364 (1.4) | 555 (2.2) |
 Smoking status, n (%) | ||||
  Never | 41,168 (63.2) | 118,540 (58.2) | 50,242 (52.6) | 12,551 (49.7) |
  Previous | 18,901 (29.0) | 67,082 (32.9) | 34,420 (36.0) | 8815 (34.9) |
  Current | 5087 (7.8) | 18,207 (8.9) | 10,870 (11.4) | 3889 (15.4) |
Obesity-related markers | ||||
 BMI, mean (SD) | 25.7 (4.2) | 27.1 (4.5) | 28.2 (4.8) | 28.89 (5.4) |
 BMI categories, n (%) | ||||
  Underweight (< 18.5) | 566 (0.9) | 952 (0.5) | 280 (0.3) | 107 (0.4) |
  Normal weight (18.5–24.9) | 31,288 (48.1) | 70,487 (34.6) | 24,335 (25.5) | 5781 (23.0) |
  Overweight (25.0 to 29.9) | 24,428 (37.5) | 88,950 (43.7) | 42,855 (44.9) | 10,374 (41.3) |
  Obese (≥30.0) | 8788 (13.5) | 43,274 (21.3) | 27,941 (29.3) | 8875 (35.3) |
 Waist circumference (cm), mean (SD) | 85.3 (12.3) | 89.2 (12.9) | 92.2 (13.3) | 94.38 (14.2) |
 Central Obesity, n (%) | 13,362 (20.5) | 60,575 (29.7) | 37,674 (39.4) | 11,327 (44.9) |
 % Body fat, mean (SD) | 29.2 (8.3) | 30.8 (8.4) | 32.7 (8.4) | 32.89 (8.9) |
Fitness, Physical activity and Sleep, mean (SD) | ||||
 Fitness (METs) | 9.7 (3.5) | 9.2 (3.4) | 8.3 (3.3) | 8.3 (3.5) |
 Grip strength (kg) | 31.1 (10.7) | 31.5 (11.0) | 30.4 (11.2) | 30.5 (11.3) |
 Total physical activity (MET.h.week−1) | 6.6 (8.9) | 6.7 (9.2) | 6.3 (9.1) | 5.0 (7.8) |
 TV viewing (h.day−1) | 0.7 (0.4) | 2.3 (0.7) | 4.1 (0.9) | 5.3 (2.4) |
 PC screen time (h.day−1) | 0.8 (0.4) | 1.0 (0.8) | 1.3 (1.4) | 3.0 (3.1) |
 Screen time (h.day− 1) | 1.6 (0.6) | 3.4 (0.9) | 5.4 (1.2) | 8.2 (2.0) |
 Sleep duration (h.day−1) | 7.1 (0.9) | 7.1 (1.0) | 7.2 (1.1) | 7.1 (1.2) |
Dietary intake, mean (SD) | ||||
 Total energy (kcal.day−1) | 2124.2 (636.5) | 2115.3 (634.9) | 2111.3 (660.9) | 2126.5 (736.9) |
 Protein intake (% of TE) | 15.3 (3.4) | 15.6 (3.6) | 15.7 (3.8) | 15.6 (4.0) |
 Carbohydrates intake (% of TE) | 47.7 (8.1) | 47.1 (8.1) | 47.0 (8.2) | 46.9 (8.6) |
 Total Fat intake (% of TE) | 31.9 (6.6) | 32.0 (6.7) | 32.2 (6.8) | 32.4 (7.1) |
 Saturated intake (% of TE) | 12.2 (3.3) | 12.3 (3.3) | 12.4 (3.4) | 12.5 (3.5) |
 Sugar intake (% of TE) | 22.8 (6.9) | 22.4 (6.9) | 22.3 (7.1) | 22.2 (7.5) |
 Alcohol intake (% of TE) | 5.1 (6.2) | 5.3 (6.4) | 5.2 (6.7) | 5.0 (7.0) |
 Red meat intake (portions.week−1) | 1.8 (1.4) | 1.9 (1.4) | 2.0 (1.5) | 2.1 (1.7) |
 Processed meat intake (portions.week−1) | 1.7 (1.1) | 1.9 (1.1) | 2.0 (1.1) | 2.0 (1.1) |
 Vegetable and Fruit intake (grams.day−1) | 350.7 (196.9) | 331.3 (189.1) | 316.7 (192.7) | 308.8 (213.5) |
 Oily fish (portions.week−1) | 1.1 (1.1) | 1.1 (1.0) | 1.1 (1.0) | 1.0 (1.1) |
Health status | ||||
 Diabetes history, n (%) | 1784 (2.7) | 7493 (3.7) | 5411 (5.7) | 2097 (8.3) |
 High blood pressure history, n (%) | 11,565 (17.7) | 47,541 (23.3) | 28,760 (30.1) | 8281 (32.8) |
 Systolic blood pressure (mmHg), mean (SD) | 135.7 (19.4) | 139.6 (19.5) | 142.6 (19.5) | 141.6 (19.8) |
 Diastolic blood pressure (mmHg), mean (SD) | 80.6 (10.7) | 82.4 (10.6) | 83.5 (10.5) | 83.6 (10.8) |
 Medication for cholesterol or blood pressure, n (%) | ||||
  None of the above | 60,310 (92.3) | 184,387 (90.2) | 82,102 (85.6) | 21,719 (85.6) |
  Cholesterol-lowering medication | 2259 (3.5) | 9644 (4.7) | 7267 (7.6) | 2037 (8.0) |
  Blood pressure medication | 2805 (4.3) | 10,439 (5.1) | 6508 (6.8) | 1612 (6.4) |