Table 1 Relationship of multimorbidity with demographics and health-related behaviour at baseline. N = 500,769
|  | No LTCs N = 172,593 (34.5%) | 1 LTC N = 163,705 (32.7%) | 2 LTCs N = 95,226 (19%) | 3 LTCs N = 43,120 (8.6%) | ≥ 4 LTCs N = 26,125 (5.2%) | Overall N = 500,769 |
|---|---|---|---|---|---|---|
Age; missing values n = 0 | ||||||
 Age in years-mean (SD) | 54.0 (8.1) | 56.6 (8.0) | 58.5 (7.6) | 59.7 (7.2) | 60.3 (6.9) | 56.5 (8.1) |
Sex; missing values n = 0 | ||||||
 Male | 79,947 (46.3%) | 75,240 (46.0%) | 43,448 (45.6%) | 19,170 (44.5%) | 10,695 (40.9%) | 228,500 (45.6%) |
 Female | 92,646 (53.7%) | 88,465 (54.0%) | 51,778 (54.4%) | 23,950 (55.5%) | 15,430 (59.1%) | 272,269 (54.4%) |
Socioeconomic status based on Townsend Score; missing values n = 626 (0.13%) | ||||||
 Townsend score-mean (SD) | − 1.5 (3.0) | − 1.4 (3.0) | − 1.2 (3.1) | − 0.9 (3.3) | − 0.4 (3.4) | − 1.3 (3.1) |
Smoking status; missing values n = 2794 (0.56%) | ||||||
 Never | 102,365 (59.7%) | 90,168 (55.3%) | 48,593 (51.3%) | 20,443 (47.7%) | 11,220 (43.3%) | 272,779 (54.8%) |
 Current or previous | 69,164 (40.3%) | 72,780 (44.7%) | 46,130 (48.7%) | 22.427 (52.3%) | 14,695 (56.7%) | 225,196 (45.2%) |
Alcohol status; missing values = 1345 (0.27%) | ||||||
 Never or special occasions only | 26,451 (15.4%) | 29,356 (18.0%) | 20,995 (22.1%) | 11,750 (27.3%) | 9506 (36.5%) | 98,058 (19.6%) |
 1–3 times/month | 18,797 (10.9%) | 17,898 (11.0%) | 10,760 (11.3%) | 5177 (12.0%) | 3075 (11.8%) | 55,707 (11.2%) |
 1–4 times/week | 91,136 (53.0%) | 81,473 (49.8%) | 44,021 (46.3%) | 18,080 (42.0%) | 9423 (36.2%) | 244,133 (48.9%) |
 Daily or almost daily | 35,541 (20.7%) | 34,670 (21.2%) | 19,260 (20.3%) | 8017 (18.7%) | 4038 (15.5%) | 101,526 (20.3%) |
Body mass index (BMI); missing values n = 3027 (0.6%) | ||||||
 < 18.5 | 1033 (0.6%) | 833 (0.5%) | 438 (0.5%) | 177 (0.4%) | 128 (0.5%) | 2609 (0.5%) |
 18.5–24.9 | 68,186 (39.8%) | 51,875 (31.8%) | 23,838 (25.2%) | 8733 (20.4%) | 4330 (16.8%) | 156,962 (31.5%) |
 25–29.9 | 73,953 (43.2%) | 71,945 (44.1%) | 40,943 (43.2%) | 17,501 (40.9%) | 9241 (35.7%) | 213,583 (42.9%) |
 30–34.9 | 22,261 (13%) | 28,672 (17.6%) | 20,535 (21.7%) | 10,699 (25.0%) | 7044 (27.2%) | 89,211 (17.9%) |
 35–39.9 | 4555 (2.7%) | 7339 (4.5%) | 6434 (6.8%) | 3937 (9.2%) | 3255 (12.6%) | 25,520 (5.1%) |
 ≥ 40 | 1323 (0.7%) | 2359 (1.5%) | 2524 (2.6%) | 1780 (4.1%) | 1871 (7.2%) | 9857 (2.0%) |
Physical activity; missing values n = 6970 (1.39%) | ||||||
 High | 24,815 (14.6%) | 16,443 (10.2%) | 6239 (6.7%) | 1837 (4.3%) | 679 (2.7%) | 50,013 (10.1%) |
 Medium | 132,926 (78.3%) | 130,709 (80.7%) | 76,505 (81.3%) | 33,690 (79.2%) | 18,506 (72.7%) | 392,336 (79.5%) |
 Low | 4655 (2.7%) | 5665 (3.5%) | 4173 (4.4%) | 2421 (5.7%) | 1931 (7.6%) | 18,845 (3.8%) |
 None | 7463 (4.4%) | 9027 (5.6%) | 7185 (7.6%) | 4590 (10.8%) | 4340 (17%) | 32,605 (6.6%) |
Presence of at least 1 cardiometabolic condition | Not applicable | 52,592 (32.1%) | 52,807 (55.4%) | 29,833 (69.2%) | 20,957 (80.2%) | 156,189 (32.2%) |
Presence of previous cancer | Not applicable | 12,744 (7.8%) | 12,509 (13.1%) | 7574 (17.6%) | 5795 (22.2%) | 38,622 (7.7%) |