Table 1 Baseline sample characteristics
Measurement | N Total = 382 | Mean (standard deviation (SD)) Median (interquartile range (IQR)) * N (%) |
|---|---|---|
Age (years) | 380 | 48.4 (9.4) |
Gender (n, % men) | 382 | 378 (99.0%) |
Ethnicity (n, % White British) | 382 | 306 (80.1%) |
Duration working as truck driver (years) | 382 | 16.0 (9.0, 25.2) * |
Average working hours (hours/week) | 381 | 48.0 (5.0) * |
BMI (kg/m2) | 380 | 29.8 (26.9, 33.2) * |
Systolic blood pressure (mmHg) | 380 | 130 (112, 139) * |
Diastolic blood pressure (mmHg) | 380 | 82 (76, 88) * |
Heart rate (bpm) | 378 | 68 (10) |
Sleep duration (minutes/day) | 346 | 371 (337, 406) * |
Sitting (minutes/day) | 341 | 665 (95) |
Steps (steps/day) | 329 | 8592 (6964, 10,704) * |
MVPA (minutes/day) | 341 | 10 (14) * |
Cluster size (number of participants per depot) | 382 | 14 (13, 17) * |