TABLE 4.
Changes in outcome parameters stratified by weight status and shiftwork status.
| Variable | Non-overweight | Overweight | p-value1 | Non-shift worker | Shift worker | p-value1 |
| Anthropometrics | ||||||
| Body mass index (kg/m2) | −0.2 (−0.6–0.1) | −0.2 (−0.7–0.3) | 0.915 | −0.1 (−0.6–0.2) | −0.3 (−0.6–0.1) | 0.045 |
| Waist circumference (cm) | −1 (−4–3) | −1 (−4–3) | 0.672 | −1 (−4–3) | −1 (−3–3) | 0.658 |
| Waist-hip ratio | −1.0 (−4.0–2.1) | −0.8 (−4.0 –1.7) | 0.855 | −1.3 (−4.7–2.1) | −0.8 (−3.2–1.7) | 0.340 |
| Waist-to-height ratio | −0.9 (−2.6–1.6) | −0.8 (−2.4–1.4) | 0.691 | −0.9 (−2.6–1.6) | −0.7 (−2.5–1.5) | 0.626 |
| Body composition | ||||||
| Body fat percentage (%) | −0.7 (−1.4–0.1) | −0.6 (−1.1–0.2) | 0.239 | −0.7 (−1.3–0.1) | −0.5 (−1.4–0.1) | 0.290 |
| Muscle weight (kg) | 0.2 (−0.3–0.6) | 0.2 (−0.3–0.7) | 0.858 | 0.2 (−0.3–0.7) | 0.2 (−0.4–0.5) | 0.299 |
| Visceral fat area (came) | −2.0 (−6.0–0.0) | −4.0 (−0.8–2.0) | 0.197 | −3.0 (−7.0–0.0) | −2.0 (−7.0–1.0) | 0.571 |
| Physical fitness | ||||||
| Grip strength (kg) | 0.0 (−1.0–2.0) | 1.0 (−2.0–3.0) | 0.594 | 0.0 (−1.3–2.0) | 0.0 (−2.0–2.0) | 0.902 |
| High jump (cm) | 1.0 (−1.0–4.0) | 2.0 (−2.0–5.0) | 0.608 | 2.0 (−2.0–5.0) | 1.7 (−1.0–4.0) | 0.231 |
| Sit-up (count) | 2 (0–4) | 2 (0–5) | 0.471 | 2 (0–4) | 3 (−1–5) | 0.367 |
| Sit-and-reach (cm) | 0.1 (−2.1–2.0) | 0.0 (−1.5–2.8) | 0.235 | −0.1 (−1.9–2.2) | 0.2 (−1.8–2.2) | 0.999 |
| Step test | 1.6 (−2.8–6.5) | 3.0 (−1.7–6.1) | 0.067 | 2.1 (−2.2–6.9) | 2.5 (−3.0–5.5) | 0.880 |
Data are summarized as median change (interquartile range). 1The difference in change (post-intervention minus pre-intervention) between weight or shiftwork subgroups obtained from generalized estimating equation analyses adjusted for sex, age, profession, and/or shiftwork status.