Table 5. Regression coefficients (β) for relationships between Actigraph-derived and IPAQ-reported MVPA and vascular and metabolic risk factors.
| Outcome | MVPA – Accelerometer | MVPA – IPAQ | |||
| β (95%CI) | p | β (95%CI) | p | p-interaction | |
| Glucose (mmol.l−1) | −0.08 (−0.2 to −0.04) | 0.021 | −0.1 (−0.2 to −0.01) | 0.037 | 0.305 |
| Insulin (mU.l−1) | −2.8 (−4.2 to −1.4) | <0.0001 | −1.9 (−3.4 to −0.5) | 0.010 | 0.002 |
| HOMAIR | −0.6 (−0.8 to 0.3) | <0.0001 | −0.4 (−0.7 to −0.2) | 0.002 | <0.0001 |
| Total Cholesterol (mmol.l−1) | −0.11 (−0.23 to −0.02) | 0.011 | −0.06 (−0.19 to −0.07) | 0.388 | 0.102 |
| HDL cholesterol (mmol.l−1) | 0.07 (0.03 to 0.11) | 0.001 | 0.02 (−0.21 to 0.07) | 0.311 | 0.261 |
| LDL cholesterol (mmol.l−1) | −0.14 (−0.27 to −0.01) | 0.042 | −0.06 (−0.20 to 0.08) | 0.403 | 0.181 |
| Triglyceride (mmol.l−1) | −0.07 (−0.13 to −0.02) | 0.035 | −0.04 (−0.11 to 0.02) | 0.188 | 0.011 |
| Systolic BP (mm Hg) | −1.4 (−3.1 to 0.1) | 0.070 | −1.6 (−3.2 to 0.04) | 0.056 | 0.084 |
| Diastolic BP (mm Hg) | −0.1 (−1.3 to 1.1) | 0.887 | 0.1 (−1.2 to 1.4) | 0.870 | 0.061 |
| Body Mass Index (m.kg−2) | −0.2 (−0.7 to −0.1) | 0.023 | −0.3 (−0.8 to 0.2) | 0.188 | 0.448 |
| Waist Circumference (cm) | −0.6 (−2.0 to −0.7) | 0.036 | −1.1 (−2.5 to 0.3) | 0.130 | 0.258 |
| Body Fat (%) | −1.5 (−1.6 to −0.5) | <0.0001 | −0.5 (−1.1 to 0.01) | 0.055 | 0.138 |
N = 317. Data presented as β coefficient and 95%CI for change in risk factor per 100-MET.min change in MVPA, adjusted for age, sex, ethnicity, environment and socio-economic status and smoking. P-values values are given for β values for each measurement method and for the interaction between regression coefficients derived from accelerometer vs IPAQ measurements.