Table 3. Unstandardized regression coefficients (β), SEs, and model R2 examining the simultaneous association of vigorous physical activity and calcium intake with bone mineral contentfrom multiple regression.
| β(SE) | P | |
|---|---|---|
| Intercept | 1448 (274) | - |
| Race1 | −279 (29) | <0.0001 |
| Sex2 | −2061 (378) | <0.0001 |
| Age | 41 (17) | <0.0001 |
| Age*Sex2 | 145 (23) | <0.0001 |
| Calcium intake | 0.15 (0.04) | 0.0004 |
| Vigorous PA | 58 (23) | 0.0097 |
| Model R2 | 0.364 | - |
1
White race is reference group;
2
male sex is reference group;
PA, physical activity.