Table 2.
Mean awake and asleep blood pressures in categories by work-related factors (N = 208)
| Work-related factor | Awake BP | Asleep BP | ||||||
|---|---|---|---|---|---|---|---|---|
| SBP (95% CI) | p value | DBP (95% CI) | p value | SBP (95% CI) | p value | DBP (95% CI) | p value | |
| Occupational status | 0.66 | 0.99 | 0.91 | 0.87 | ||||
| Non-manual (n = 163) | 134.1 (130.0–138.3) | 81.2 (78.8–83.7) | 113.5 (109.6–117.4) | 66.5 (64.2–68.8) | ||||
| Manual (n = 45) | 133.2 (128.3–138.2) | 81.2 (78.3–84.1) | 113.7 (109.1–118.3) | 66.7 (64.0–69.4) | ||||
| Work-time mode | 0.03 | 0.15 | 0.37 | 0.79 | ||||
| Regular day work (n = 142) | 132.5 (128.3–136.6) | 80.7 (78.2–83.1) | 113.0 (109.1–116.9) | 66.7 (64.3–69.0) | ||||
| Shift work (n = 66) | 136.5 (131.9–141.1) | 82.3 (79.5–85.0) | 114.6 (110.2–118.9) | 66.4 (63.8–68.9) | ||||
| Job demands | 0.29 | 0.34 | 0.82 | 0.65 | ||||
| Low (n = 101) | 134.7 (130.4–139.0) | 81.7 (79.1–84.2) | 113.4 (109.4–117.4) | 66.4 (64.0–68.7) | ||||
| High (n = 107) | 132.9 (128.6–137.3) | 80.7 (78.1–83.3) | 113.7 (109.6–117.8) | 66.8 (64.4–69.2) | ||||
| Job control | 0.93 | 0.29 | 0.84 | 0.66 | ||||
| Low (n = 98) | 133.9 (129.7–138.1) | 81.6 (79.2–84.1) | 113.4 (109.5–117.4) | 66.7 (64.4–69.0) | ||||
| High (n = 110) | 133.8 (129.3–138.3) | 80.6 (77.9–83.2) | 113.7 (109.6–117.9) | 66.3 (63.8–68.8) | ||||
Means are adjusted for age, gender, BMI, antihypertensive medication, physical activity, smoking and cohort. p values are for the differences between categories
BP blood pressure, SBP systolic blood pressure, DBP diastolic blood pressure, CI confidence interval