Regression coefficients and ORs of the differences in PA levels by years of shift work compared with non-shift workers†
| <10 years (n=184) B (95% CI) | 10–19 years (n=174) B (95% CI) | ≥20 years (n=174) B (95% CI) | p-trend | |
|---|---|---|---|---|
| PA type (hours/week) | ||||
| Walking | 1.8 (−0.1 to 3.6) | 3.1 (1.3 to 5.0)* | 2.0 (0.3 to 3.7)* | <0.01 |
| Cycling | −0.2 (−0.7 to 0.4) | 0.8 (0.0 to 1.5)* | −0.1 (−0.7 to 0.5) | 0.39 |
| Exercise | 0.4 (−0.1 to 0.9) | −0.2 (−0.5 to 0.2) | −0.1 (−0.5 to 0.3) | 0.65 |
| Chores | −1.2 (−2.5 to 0.1) | 0.6 (−0.9 to 2.2) | −0.3 (−1.8 to 1.2) | 0.81 |
| PA intensity (hours/week) | ||||
| Moderate PA | 0.6 (−1.6 to 2.8) | 3.8 (1.3 to 6.3)* | 1.7 (−0.7 to 4.1) | <0.01 |
| Vigorous PA | 0.3 (−0.5 to 1.0) | 0.6 (−0.2 to 1.4) | −0.2 (−1.0 to 0.5) | 0.63 |
| <10 years (n=184) OR (95% CI) | 10–19 years (n=174) OR (95% CI) | ≥20 years (n=174) OR (95% CI) | p-trend | |
| Sports activities | ||||
| Plays sports (yes) | 1.0 (0.7 to 1.3) | 0.8 (0.6 to 1.1) | 0.9 (0.7 to 1.2) | 0.22 |
| Type of sports (non-individual) | 1.8 (1.1 to 2.9)* | 0.7 (0.4 to 1.2) | 0.5 (0.3 to 1.0) | 0.12 |
| Sports intensity (≥6.0 MET) | 1.5 (0.9 to 2.6) | 1.3 (0.7 to 2.3) | 0.5 (0.2 to 1.3) | 0.56 |
Reference group: non-shift workers.
*p<0.05.
†Adjusted for age, gender, educational level, marital status, smoking status, diet and occupational PA.
B, Regression coefficient; MET, metabolic equivalent value; PA, physical activity.