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Table 1 Participant characteristics

From: Child maltreatment and cardiovascular disease: quantifying mediation pathways using UK Biobank

 Number of child maltreatment types
None (n = 101,438)One (n = 30,915)Two (n = 11,625)Three or more (n = 8062)
Mean (SD) age, years56.16 (7.70)55.81 (7.73)55.25 (7.80)54.17 (7.71)
Female55,938 (55.1)17,134 (55.4)7082 (60.9)5509 (68.3)
Ethnicity
 White99,415 (98.0)29,843 (96.5)11,061 (95.1)7445 (92.3)
 Mixed361 (0.4)199 (0.6)101 (0.9)127 (1.6)
 South Asian656 (0.6)323 (1.0)147 (1.3)125 (1.6)
 Black450 (0.4)237 (0.8)155 (1.3)218 (2.7)
 Chinese144 (0.1)108 (0.3)53 (0.5)43 (0.5)
 Others412 (0.4)205 (0.7)108 (0.9)104 (1.3)
Socioeconomic status
 Mean (SD) deprivation index− 1.89 (2.73)− 1.55 (2.89)− 1.26 (3.03)− 0.78 (3.25)
 Education level
  College or university degree47,464 (46.8)13,809 (44.7)4936 (42.5)3219 (39.9)
  A levels/AS levels or equivalent13,885 (13.7)4125 (13.3)1531 (13.2)1030 (12.8)
  O levels/GCSEs or equivalent20,041 (19.8)6114 (19.8)2353 (20.2)1642 (20.4)
  SEs or equivalent3445 (3.4)1224 (4.0)533 (4.6)417 (5.2)
  NVQ or HND or HNC or equivalent4848 (4.8)1669 (5.4)650 (5.6)514 (6.4)
  Other professional qualifications5044 (5.0)1602 (5.2)596 (5.1)461 (5.7)
  None of the above6440 (6.3)2273 (7.4)968 (8.3)744 (9.2)
  Prefer not to answer271 (0.3)99 (0.3)58 (0.5)35 (0.4)
Lifestyle factors
 Sleep duration
  < 6 h913 (0.9)330 (1.1)211 (1.8)161 (2.0)
  6–9 h97,276 (96.1)29,206 (94.7)10,730 (92.6)7211 (89.9)
  > 9 h3075 (3.0)1304 (4.2)650 (5.6)645 (8.0)
 Smoking status
  Never61,136 (60.4)16,848 (54.6)5823 (50.2)3589 (44.7)
  Former33,856 (33.4)11,524 (37.3)4671 (40.3)3397 (42.3)
  Current6279 (6.2)2488 (8.1)1101 (9.5)1049 (13.1)
 Alcohol drinking > 14 units/week40,341 (42.9)12,215 (42.7)4263 (40.0)2635 (35.9)
 Mean (SD) MET·min of physical activity/week2417.23 (2236.73)2440.37 (2303.14)2519.91 (2348.86)2724.99 (2535.82)
 Mean (SD) hours of TV viewing/day2.45 (1.38)2.48 (1.44)2.53 (1.50)2.58 (1.59)
Physical measurements
 BMI categories
  Underweight569 (0.6)172 (0.6)54 (0.5)53 (0.7)
  Normal39,848 (39.4)11,521 (37.4)4105 (35.4)2600 (32.3)
  Overweight42,157 (41.6)12,784 (41.5)4711 (40.6)3204 (39.8)
  Obese18,663 (18.4)6358 (20.6)2734 (23.6)2184 (27.2)
 Abdominal obesity42,863 (42.3)13,636 (44.2)5122 (44.1)3518 (43.7)
 Mean (SD) systolic blood pressure, mmHg136.70 (18.06)135.68 (17.97)134.95 (18.16)133.65 (18.09)
 Mean (SD) grip strength, kg31.48 (10.70)31.30 (10.74)30.37 (10.66)29.19 (10.38)
Psychiatric/emotional factors
 Depression diagnosed3683 (3.6)1919 (6.2)1013 (8.7)1016 (12.6)
 Anxiety diagnosed1282 (1.3)591 (1.9)279 (2.4)271 (3.4)
 Schizophrenia diagnosed184 (0.2)85 (0.3)58 (0.5)66 (0.8)
 Mean (SD) depressive symptoms (PHQ-9)2.20 (3.05)3.23 (3.87)4.22 (4.65)5.45 (5.69)
 Mean (SD) anxiety symptoms (GAD-7)1.72 (2.91)2.49 (3.59)3.28 (4.18)4.28 (4.95)
 Any psychotic experience3351 (3.3)1624 (5.3)930 (8.2)1037 (13.4)
 Any behavioural addiction912 (0.9)596 (2.0)312 (2.7)332 (4.2)
 Any drug addiction786 (0.8)470 (1.5)283 (2.5)332 (4.2)
 Any self-harm behaviours2376 (2.3)1668 (5.4)1101 (9.5)1390 (17.4)
Mean (SD) biomarkers
 HDL cholesterol, mmol/L1.49 (0.38)1.47 (0.38)1.47 (0.38)1.47 (0.38)
 LDL cholesterol, mmol/L3.58 (0.84)3.57 (0.84)3.56 (0.84)3.57 (0.87)
 Glycated haemoglobin, mmol/mol35.26 (5.40)35.36 (5.70)35.55 (6.32)35.57 (6.09)
 Cystatin C, mg/L0.88 (0.15)0.89 (0.15)0.88 (0.15)0.88 (0.17)
 Gamma-glutamyltransferase, U/L33.79 (34.94)34.33 (35.71)34.46 (36.36)34.79 (35.76)
  1. Numbers presented are n (%) unless otherwise specified