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Table 1 Cohort baseline characteristics

From: Associations of six adiposity-related markers with incidence and mortality from 24 cancers—findings from the UK Biobank prospective cohort study

  Normal weight Overweight Obese Overall
n 143,460 (32.8%) 187,563 (42.9%) 106,370 (24.3%) 437,393
Age, mean (SD) 55.4 (8.22) 56.7 (8.07) 56.6 (7.90) 56.3 (8.10)
Sex
 Females 92,922 (64.8%) 87,097 (46.4%) 55,246 (51.9%) 235,265 (53.8%)
 Males 50,538 (35.2%) 100,466 (53.6%) 51,124 (48.1%) 202,128 (46.2%)
Townsend deprivation index
 Lower deprivation 51,511 (35.9%) 65,530 (34.9%) 30,740 (28.9%) 147,781 (33.8%)
 Middle deprivation 48,183 (33.6%) 63,918 (34.1%) 34,366 (32.3%) 146,467 (33.5%)
 Higher deprivation 43,766 (30.5%) 58,115 (31.0%) 41,264 (38.8%) 143,145 (32.7%)
Education
 College or University degree 64,263 (44.8%) 69,351 (37.0%) 32,442 (30.5%) 166,056 (38.0%)
 A levels/AS levels or equivalent 17,455 (12.2%) 20,738 (11.1%) 11,116 (10.5%) 49,309 (11.3%)
 O levels/GCSEs or equivalent 29,336 (20.4%) 40,223 (21.4%) 23,510 (22.1%) 93,069 (21.3%)
 SEs or equivalent/NVQ or HND or HNC or equivalent 13,885 (9.7%) 23,548 (12.6%) 15,352 (14.4%) 52,785 (12.1%)
 Missing 18,521 (12.9%) 33,703 (18.0%) 23,950 (22.5%) 76,174 (17.4%)
Ethnicity
 White 136,331 (95.0%) 177,574 (94.7%) 99,866 (93.9%) 413,771 (94.6%)
 Mixed 2101 (1.5%) 2703 (1.4%) 1741 (1.6%) 6545 (1.5%)
 South Asian 2830 (2.0%) 3965 (2.1%) 1869 (1.8%) 8664 (2.0%)
 Black 1327 (0.9%) 2905 (1.5%) 2813 (2.6%) 7045 (1.6%)
 Chinese 871 (0.6%) 416 (0.2%) 81 (0.1%) 1368 (0.3%)
 Height (m), mean (SD) 1.68 (0.08) 1.69 (0.09) 1.68 (0.09) 1.69 (0.09)
 Weight (kg), mean (SD) 64.7 (8.47) 78.6 (9.63) 95.9 (14.3) 78.2 (15.8)
 Waist circumference (cm), mean (SD) 78.6 (8.10) 91.0 (8.36) 105 (11.0) 90.3 (13.3)
 Body mass index (kg/m2), mean (SD) 22.9 (1.53) 27.3 (1.40) 33.9 (3.83) 27.4 (4.71)
Smoking
 Never 85,608 (59.7%) 101,285 (54.0%) 54,809 (51.5%) 241,702 (55.3%)
 Previous 41,891 (29.2%) 67,116 (35.8%) 41,239 (38.8%) 150,246 (34.4%)
 Current 15,961 (11.1%) 19,162 (10.2%) 10,322 (9.7%) 45,445 (10.4%)
Alcohol intake
 Daily or almost daily 32,389 (22.6%) 40,452 (21.6%) 16,463 (15.5%) 89,304 (20.4%)
 3–4 times a week 35,702 (24.9%) 46,235 (24.7%) 20,550 (19.3%) 10,2487 (23.4%)
 Once or twice a week 36,313 (25.3%) 49,273 (26.3%) 28,077 (26.4%) 113,663 (26.0%)
 1–3 times a month 14,853 (10.4%) 19,717 (10.5%) 14,346 (13.5%) 48,916 (11.2%)
 Special occasions only 14,027 (9.8%) 18,826 (10.0%) 16,405 (15.4%) 49,258 (11.3%)
 Never 10,176 (7.1%) 13,060 (7.0%) 10,529 (9.9%) 33,765 (7.7%)
 Fruit and vegetable intake (portion/day), mean (SD) 2.01 (0.825) 1.95 (0.827) 1.94 (0.832) 1.97 (0.828)
 Red meat (portion/week), mean (SD) 1.93 (1.38) 2.14 (1.42) 2.28 (1.53) 2.11 (1.44)
 Processed meat (portion/week), mean (SD) 1.69 (1.08) 1.92 (1.04) 2.03 (1.04) 1.87 (1.06)
 Oily fish (portion/week), mean (SD) 1.65 (0.919) 1.65 (0.921) 1.59 (0.946) 1.64 (0.927)
 Sedentary time (hours/day), mean (SD) 4.48 (2.03) 5.12 (2.22) 5.64 (2.51) 5.03 (2.28)
 Physical activity (hours/day), mean (SD) 1.62 (1.44) 1.76 (1.58) 2.22 (2.00) 1.83 (1.67)
 Diabetes at baseline 2398 (1.7%) 7325 (3.9%) 11,485 (10.8%) 21,208 (4.8%)
 Hypertension at baseline 20,636 (14.4%) 48,570 (25.9%) 44,758 (42.1%) 11,3964 (26.1%)
  1. Data are presented as numbers (percentages) unless stated otherwise. Participants classified as underweight (BMI < 18.5 kg/m2 were excluded from the analyses (n = 2629)
  2. SD standard deviation, BMI body mass index