Prediction of cardiovascular health risk markers with physical activity and cardiorespiratory fitness among 650 children from Port Elizabeth, South Africa, in February and March 2018
| CRF (β) | Sedentary (β) | LPA (β) | MPA (β) | VPA (β) | MVPA (β) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Controlled for CRF/accelerometer wear time or MVPA, and potential confounders (class-in-school (random intercept), age, sex, SES and ethnicity)† | |||||||||||||||
| B | Estimate (95% CI) | B | Estimate (95% CI) | B | Estimate (95% CI) | B | Estimate (95% CI) | B | Estimate (95% CI) | B | Estimate (95% CI) | ||||
| Systolic blood pressure (mm Hg) | −0.06* | −0.12; −0.01 | 0.03** | 0.01; 0.04 | −0.03* | −0.05; −0.01 | −0.07* | −0.13; −0.01 | −0.12** | −0.20; −0.05 | −0.06** | −0.09; −0.02 | |||
| Diastolic blood pressure (mm Hg) | −0.04+ | −0.08; 0.00 | 0.01+ | −0.02; 0.00 | −0.01 | −0.03; 0.00 | −0.01 | −0.06; 0.03 | −0.06* | −0.11; −0.01 | −0.02 | −0.04; 0.01 | |||
| Skinfolds (mm) | −0.15*** | −0.18; −0.13 | 0.00 | −0.01; 0.01 | 0.01 | −0.01; 0.02 | −0.03* | −0.06; −0.01 | −0.04* | −0.07; −0.01 | −0.02* | −0.04; −0.01 | |||
| Total cholesterol (mmol/L) | −0.01* | −0.01; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | −0.01+ | −0.01; 0.00 | −0.01 | −0.01; 0.00 | −0.01+ | −0.01; 0.00 | |||
| HDL cholesterol (mmol/L) | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | |||
| LDL cholesterol (mmol/L) | −0.01* | −0.01; 0.00 | 0.00 | 0.00;0.00 | 0.00 | 0.00; 0.00 | 0.00 | −0.01; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | |||
| Triglycerides (mmol/L)‡ | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | |||
| HbA1c (%) | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | 0.00 | 0.00; 0.00 | |||
| Clustered risk index | −0.05*** | −0.06; −0.03 | 0.00 | −0.01; 0.01 | 0.00 | −0.01; 0.00 | −0.01+ | −0.03; 0.00 | −0.02+ | −0.04; 0.00 | −0.01* | −0.02; 0.00 | |||
† If CRF is the predictor, the regression analyses are controlled for MVPA and potential confounders. If physical activity indicators are the predictor, the analyses are controlled for CRF, total accelerometer devices wear time and potential confounders.
‡ Log-transformed.
+p<0.10, *p<0.05, **p<0.01, ***p<0.001.
CRF, cardiorespiratory fitness; HbA1c, blood glucose; HDL, high-density lipoprotein; LDL, low-density lipoprotein; LPA, light physical activity; MPA, moderate physical activity; MVPA, moderate-to-vigorous physical activity; VPA, vigorous physical activity.