Participants’ demographic information. Median and IQR values are shown for the body measurements, blood pressure, blood markers and lifestyle factors for the whole sample of UK lorry drivers (n=159) and the subsample (n=87) who provided activity data
| Total sample (median (range)/number (%)) | Subsample (median (range)/number (%)) | Differences (p value) | |
| Age (years) | 50.0 (24.0, 67.0) | 50.0 (25.0, 65.0) | 0.504 |
| Average working hours (hours/week) | 48.0 (27.0, 70.0) | 48.0 (27.0, 60.0) | 0.198 |
| Ethnicity | 0.259 | ||
| White European | 91.0 | 95.5 | |
| Asian/Asian British | 4.5 | 1.1 | |
| Black Caribbean | 2.5 | 2.3 | |
| Other | 2.0 | 1.1 | |
| Highest level of education | 0.019 | ||
| GCSEs | 71.0 | 94.0 | |
| A-levels | 9.0 | 2.3 | |
| Other | 11.0 | 4.5 | |
| Medical information | 0.833 | ||
| CV-related medication (BP, thrombosis, cholesterol) | 12.4 | 11.4 | |
| Anxiety (borderline/abnormal) | 31.0 | 35.2 | 0.314 |
| Depression (borderline/abnormal) | 15.5 | 17.0 | 0.872 |
| Body composition | |||
| % Body fat | 26.0 (12.2, 44.5) | 24.8 (12.2, 43.3) | 0.200 |
| Waist circumference (cm) | 102.1 (77.5, 146.5) | 100.9 (77.5, 141.0) | 0.412 |
| Waist–hip ratio (cm) | 0.95 (0.8, 1.1) | 0.93 (0.8, 1.1) | 0.100 |
| BMI (kg/m2) | 28.8 (19.6, 47.2) | 27.7 (19.6, 43.4) | 0.176 |
| Blood pressure | |||
| Systolic blood pressure (mm Hg) | 129.0 (108.5, 164.0) | 129.0 (108.5, 155.0) | 0.574 |
| Diastolic blood pressure (mm Hg) | 81.0 (63.0, 104.0) | 81.0 (65.0, 104.0) | 0.362 |
| Heart rate (beats/min) | 62.0 (42.0, 89.0) | 61.0 (42.0, 89.0) | 0.292 |
| Blood markers (mmol/L) | |||
| FBG | 5.4 (3.7, 12.7) | 5.1 (3.7, 12.7) | 0.491 |
| HDL-C | 1.4 (0.6, 2.6) | 1.4 (0.9, 1.7) | 0.578 |
| LDL-C | 3.0 (1.0, 5.7) | 3.2 (1.0, 5.4) | 0.151 |
| TGs | 1.5 (0.1, 6.9) | 1.5 (0.7, 4.3) | 0.142 |
| TC | 4.9 (2.6, 7.5) | 5.1 (2.6, 7.3) | 0.107 |
| Lifestyle behaviours | |||
| Average fruit and vegetables /day | 5.0 (0.0, 15.0) | 4.3 (0.0, 11.5) | 0.465 |
| Alcohol units/week (n=111; subsample n=88) | 9.0 (1.5, 60.0) | 10.0 (5.0, 60.0) | 0.129 |
| Cigarettes/week (n=89; subsample n=55) | 122.5 (2.0, 700.0) | 140.0 (20.0, 700.0) | 0.291 |
BMI, body mass index; BP, blood pressure; CV, cardiovascular; FBG, fasting blood glucose; GCSEs, General Certificate of Secondary Education; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; TC, total cholesterol; TGs, triglycerides.