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Relationships between body mass index and body fat%.
| Age Group | No. | r | P value |
|---|---|---|---|
| <39 | 1077 | 0.767 | 0.000 |
| 40-59 | 426 | 0.812 | 0.000 |
| >60 | 65 | 0.871 | 0.000 |
Scatter plot shows a strong positive correlation between BI and BF%. Though curvilinear relationship developed with increasing BMI, it shows that the correlation is still linear. Test of linearity with the use of polynomial regression shows a significant quadratic component.
