Table 2 Characteristics of the UK Biobanking population for the subjective physical activity measurement dataset (n = 105705) and the Objective Physical Activity Measurement dataset (n = 42006)
|  | Subjective physical activity dataset (N = 105705) | Objective physical activity dataset (N = 42006) |
|---|---|---|
Age (mean (SD)) | 55.69 (7.95) | 55.95 (7.79) |
Sex = Male (%) | 49,312 (46.7) | 18,291 (43.5) |
Townsend deprivation index (mean (SD)) | -1.69 (2.80) | -1.80 (2.75) |
E-DII group a (%) | Â | |
 Pro-inflammatory | 9475 (9.0) | 3392 (8.1) |
 Neutral | 79,580 (75.3) | 32,579 (77.6) |
 Anti-inflammatory | 16,650 (15.8) | 6035 (14.4) |
Physical activity group b (%) | Â | |
 Low | 16,238 (15.4) | 13,592 (32.4) |
 Medium | 57,939 (54.8) | 14,207 (33.8) |
 High | 31,528 (29.8) | 14,207 (33.8) |
Sleep group c (%) | Â | |
 Unhealthy | 37,717 (35.7) | 14,333 (34.1) |
 Healthy | 67,988 (64.3) | 27,673 (65.9) |
Race (%) | Â | Â |
 Asian or Asian British | 1379 (1.3) | 352 (0.8) |
 Black or Black British | 940 (0.9) | 280 (0.7) |
 Chinese | 296 (0.3) | 84 (0.2) |
 White | 101,534 (96.1) | 40,736 (97.0) |
 Mixed | 588 (0.6) | 224 (0.5) |
 Other ethnic | 968 (0.9) | 330 (0.8) |
Employment status (%) | ||
 Work | 61,027 (57.7) | 23,819 (56.7) |
 Retired | 28,816 (27.3) | 11,681 (27.8) |
 Other | 15,862 (15.0) | 6506 (15.5) |
Qualifications (%) | ||
 Low | 75,351 (71.3) | 30,045 (71.5) |
 Middle | 14,141 (13.4) | 5538 (13.2) |
 High | 16,213 (15.3) | 6423 (15.3) |
Frequency of alcohol consumption (%) | ||
 Never | 5898 (5.6) | 2182 (5.2) |
 Special occasions only | 9435 (8.9) | 3752 (8.9) |
 One to three times a month | 11,238 (10.6) | 4436 (10.6) |
 Once or twice a week | 26,287 (24.9) | 10,461 (24.9) |
 Three or four times a week | 27,651 (26.2) | 11,204 (26.7) |
 Daily or almost daily | 25,196 (23.8) | 9971 (23.7) |
Smoking state (%) | ||
 Current | 7871 (7.4) | 2673 (6.4) |
 Previous | 37,612 (35.6) | 15,058 (35.8) |
 Never | 60,222 (57.0) | 24,275 (57.8) |
BMI group (%) | Â | |
 Underweight | 571 (0.5) | 261 (0.6) |
 Normal | 39,854 (37.7) | 16,959 (40.4) |
 Overweight | 44,450 (42.1) | 17,087 (40.7) |
 Obese | 20,830 (19.7) | 7699 (18.3) |
Chronic disease status d (%) | ||
 Disease-free | 47,300 (44.7) | 19,211 (45.7) |
 Single Disease | 23,314 (22.1) | 9256 (22.0) |
 Multi-disease | 35,091 (33.2) | 13,539 (32.2) |
Homeostatic disorder (mean (SD)) | 2.14 (0.92) | 2.14 (0.89) |
KDM age acceleration (mean (SD)) | -0.91 (5.73) | -1.18 (5.66) |
PhenoAge acceleration (mean (SD)) | -0.50 (5.04) | -0.73 (4.93) |
Telomere length e (mean (SD)) | 0.04 (0.99) | 0.06 (0.99) |