Table 3.
Variable | Coefficient | Std. Err. | p | 95% Confidence Interval | adj R2 | RMSE | |
---|---|---|---|---|---|---|---|
2 Skinfold Prediction Equations | |||||||
| |||||||
Non-African American Males | Log Sum 2 SF | 13.12 | 0.38 | <0.001 | (12.37, 13.87) | 0.81 | 2.45 |
Log Height | −15.46 | 1.80 | <0.001 | (−18.98, −11.94) | |||
Tanner 4–5 | −13.66 | 33.92 | 0.69 | (−80.13, 52.82) | |||
Tanner 4–5 x Log Height | 2.19 | 6.61 | 0.74 | (−10.77, 15.15) | |||
Intercept | 64.58 | 8.67 | <0.001 | (47.59, 81.57) | |||
| |||||||
African American Males | Log Sum 2 SF | 14.73 | 0.55 | <0.001 | (13.66, 15.80) | 0.86 | 2.56 |
Log Height | −10.55 | 2.13 | <0.001 | (−14.73, −6.37) | |||
Tanner 4–5 | 75.72 | 37.37 | 0.043 | (2.48, 148.96) | |||
Tanner 4–5 x Log Height | −15.40 | 7.32 | 0.035 | (−29.73, −1.06) | |||
Intercept | 34.82 | 9.98 | <0.001 | (15.25, 54.38) | |||
| |||||||
All Males - Simplified Equation (no Tanner Stage required) | Log Sum 2 SF | 14.30 | 0.55 | 0.0000 | (13.21, 15.38) | 0.82 | 2.64 |
Log Height | −20.66 | 1.45 | 0.0000 | (−23.5, −17.81) | |||
African American | −1.09 | 0.41 | 0.0070 | (−1.89, −0.30) | |||
Intercept | 86.44 | 6.95 | 0.0000 | (72.81, 100.06) | |||
| |||||||
Females | Log Sum 2 SF | 13.95 | 0.63 | <0.001 | (12.72, 15.18) | 0.74 | 3.00 |
Log Height | −18.09 | 1.80 | <0.001 | (−21.61, −14.57) | |||
African American | −1.77 | 0.41 | <0.001 | (−2.56, −0.97) | |||
Intercept | 77.17 | 8.12 | <0.001 | (61.26, 93.08) | |||
| |||||||
4 Skinfold Prediction Equations | |||||||
| |||||||
Males | Log Sum 4 SF | 12.41 | 0.49 | <0.001 | (11.45, 13.38) | 0.85 | 2.41 |
Log Height | −16.90 | 2.05 | <0.001 | (−20.93, −12.88) | |||
Tanner 4–5 | −1.84 | 0.64 | 0.004 | (−3.09, −0.59) | |||
African American | −8.46 | 2.74 | 0.002 | (−13.83, −3.10) | |||
Afr Amer X Log Sum 4SF | 2.27 | 0.83 | 0.006 | (0.65, 3.89) | |||
Intercept | 66.78 | 9.81 | <0.001 | (47.56, 86.00) | |||
| |||||||
Males - Simplified Equation (no Tanner Stage required) | Log Sum 4 SF | 12.74 | 0.51 | <0.001 | (11.74, 13.74) | 0.84 | 2.47 |
Log Height | −21.47 | 0.99 | <0.001 | (−23.41, −19.53) | |||
African American | −7.90 | 2.84 | 0.005 | (−13.47, −2.34) | |||
Afr Amer X Log Sum 4SF | 2.09 | 0.86 | 0.015 | (0.41, 3.77) | |||
Intercept | 87.82 | 4.75 | <0.001 | (78.51, 97.14) | |||
| |||||||
Females | Log Sum 4 SF | 13.99 | 0.49 | <0.001 | (13.03, 14.96) | 0.76 | 2.83 |
Log Height | −21.42 | 1.78 | <0.001 | (−24.92, −17.92) | |||
African American | −34.61 | 14.25 | 0.015 | (−62.54, −6.67) | |||
Afr Amer X Log Height | 6.73 | 2.88 | 0.02 | (1.08, 12.37) | |||
Intercept | 85.65 | 8.75 | <0.001 | (68.50, 102.80) |