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Table 1 Relationship of multimorbidity with demographics and health-related behaviour at baseline. N = 500,769

From: Relationship between multimorbidity, demographic factors and mortality: findings from the UK Biobank cohort

  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%)
  1. LTCs long-term conditions, SD standard deviation, cardiometabolic conditions hypertension, coronary heart disease, peripheral vascular disease, atrial fibrillation, diabetes, heart failure, stroke or transient ischaemic attack