Median and range values for age, average working hours, BMI and activity data on workdays by shift pattern in a sample of lorry drivers from the East Midlands, UK (n=87)
| Morning shift Median (range) | Afternoon shift Median (range) | Night shift Median (range) | Differences (p value) | |
| n=42 | n=21 | n=24 | ||
| Age (years) | 51.0 (27.0, 65.0) | 48.0 (28.0, 58.0) | 49.5 (25.0–60.0) | 0.471 |
| Average working hours (hour/day) | 10.15 (5.46, 12.5) | 10.5 (9.2, 14.24) | 10.2 (9.3, 14.33) | <0.050 |
| BMI (kg/m2) | 27.8 (22.0, 38.7) | 30.2 (27.7, 43.4) | 27.4 (19.6–38.6) | 0.507 |
| Sleep time (mins/day) | 461.3 (342.3, 626.6) | 316.1 (157.9, 774.3) | 329.9 (232.2–462.3) | <0.001 |
| Waking hours (mins/day) | 995.0 (813.4, 1116.7) | 1063.2(942.2, 1395.4) | 1095.7(977.7, 1207.8) | <0.001 |
| Time spent sitting (mins/day) | 682.5 (493.5, 853.9) | 779.9 (556.1, 1179.9) | 785.9 (680.3–884.1) | <0.001 |
| Time spent standing (mins/day) | 177.6 (91.62, 339.6) | 174.6 (90.0, 414.2) | 194.0 (133.3, 269.3) | 0.243 |
| Time in light PA (mins/day) | 82.1 (48.0, 169.2) | 81.9 (48.7, 149.4) | 94.8 (66.7, 140.5) | 0.166 |
| Time in MVPA (mins/day) | 12.6 (1.4, 103.5) | 10.0 (2.0, 53.7) | 15.2 (3.5, 72.0) | 0.961 |
| Total steps per day | 7551.6 (4136.7, 12 516.4) | 8083.2 (4824.7, 11 895.0) | 9010.0 (5999.2, 15 618.5) | 0.141 |
| Transitions from sitting to standing per waking hours | 2.8 (0.8, 0.9) | 2.6 (1.8, 7.8) | 2.9 (2.0, 4.7) | 0.774 |
BMI, body mass index; MVPA, moderate-to-vigorous physical activity; PA, physical activity.