Table 2A.
Participant profile: summary of continuous indicators among public school teachers in mid-2019 in Gqeberha, South Africa.
| Continuous variables | Sample sizei | Median (Interquartile range) | Mean (Standard deviation) |
Minimum–maximum |
|---|---|---|---|---|
| Demographic indicators | ||||
| Age (years in 2019) | 136 | 50 (44–55) | 47 (11) | 21–72 |
| Bone mass indicators | ||||
| Femoral neck bone mineral density (BMD) (g/cm2) | 136 | 0.85 (0.77–0.94) | 0.87 (0.13) | 0.62–1.33 |
| Femoral neck T-score | 69 | −0.2 (−0.9–0.6) | −0.1 (1.0) | −1.9–3.1 |
| Femoral neck Z-score | 136 | 0.6 (−0.3–1.5) | 0.6 (1.2) | −1.9–4.4 |
| Hip bone mineral density (BMD) (g/cm2) | 136 | 1.00 (0.90–1.10) | 1.00 (0.14) | 0.73–1.45 |
| Hip T-score | 69 | 0.4 (−0.4–1.1) | 0.4 (1.1) | −1.7–4.2 |
| Hip Z-score | 136 | 0.7 (−0.2–1.5) | 0.7 (1.2) | −1.6–3.7 |
| Lumbar spine bone mineral density (BMD) (g/cm2) | 136 | 1.01 (0.89–1.09) | 1.01 (0.14) | 0.75–1.43 |
| Lumbar spine T-score | 69 | −0.8 (−1.7–0.2) | −0.6 (1.2) | −2.7–2.3 |
| Lumbar spine Z-score | 136 | 0.1 (−0.9–1.0) | 0.1 (1.3) | −2.7–3.8 |
| Whole body bone mineral density (BMD) (g/cm2) | 136 | 1.10 (1.05–1.17) | 1.11 (0.10) | 0.91–1.47 |
| Whole body T-score | 69 | −0.4 (−1.2–0.7) | −0.3 (1.2) | −2.4–2.5 |
| Whole body Z-score | 136 | −0.1 (−0.8–0.6) | −0.1 (1.0) | −2.5–2.4 |
| Fat mass indicators | ||||
| Body fat (%) | 136 | 44.6 (39.0–48.9) | 42.5 (8.5) | 13.4–54.4 |
| Fat mass index (FMI) (kg/m2) | 135 | 14.0 (10.1–17.9) | 14.1 (5.3) | 2.5–30.3 |
| Lean mass indicators | ||||
| Appendicular lean mass index (ALMI) (kg/m2) | 136 | 7.6 (6.4–8.5) | 8.2 (4.2) | 4.7–35.7 |
| Anthropometric indicators | ||||
| Height (cm) | 135 | 161.3 (155.3–165.0) | 160.7 (7.3) | 140.1–190.4 |
| Weightii (kg) | 136 | 84.8 (72.1–96.3) | 85.7 (21.2) | 47.3–160.5 |
| Physical activity indicators | ||||
| Average ENMO (mg) iii | 77 | 13.27 (10.09–16.01) |
13.4 (4.68) | 4.79–27.6 |
| MVPAiv (≥70mgv; min/week) | 77 | 119.00 (67.50–198.25) |
146.0 (107.0) | 1–611 |
| Absolute maximum grip strength (kg)vi | 134 | 34 (30–39) |
34.7 (7.1) | 22–66 |