Table 2.
Validity measures of body circumferences as measured by Gulick tape and LS3D.
| Body Circumference Locations | Convergent Validity | Concurrent Validity | ||||
|---|---|---|---|---|---|---|
| Pearson Coefficient r [95% CI] | Bias [95% CI] |
95% Limits of Agreement | Individual % Agreement ** | |||
| Male | Female | Total | ||||
| Neck (cm) | 0.85 [0.80, 0.88] | 0 [−1, 1] | (−4, 4) | 74 (4) | 78 (5) | 75 (3) |
| Umbilicus (cm) | 0.91 [0.89, 0.93] | 2 [1, 3] * | (−4, 8) | 62 (4) | 51 (6) | 58 (3) |
| Waist (cm) | 0.96 [0.94, 0.97] | 2 [−6, 6] | (−2, 6) | 46 (4) | 46 (6) | 46 (3) |
| Hip (cm) | 0.89 [0.86, 0.91] | 2 [1, 3] * | (−4, 8) | 69 (4) | 70 (5) | 69 (3) |
| Left Humerus (cm) | 0.85 [0.80, 0.89] | 0 [−1, 1] | (−4, 4) | 62 (5) | 76 (6) | 67 (4) |
| Right Humerus (cm) | 0.85 [0.80, 0.89] | 0 [−1, 1] | (−4, 4) | 67 (5) | 69 (6) | 68 (4) |
| Left Femur (cm) | 0.90 [0.87, 0.92] | 2 [1, 3] * | (−2, 6) | 53 (5) | 42 (6) | 49 (4) |
| Right Femur (cm) | 0.92 [0.89, 0.94] | 2 [1, 3] * | (−2, 5) | 56 (4) | 50 (6) | 54 (4) |
*—indicates statistically significant bias between the measurement methods. **—RCI = 2 cm for all measures except Hip, which has RCI = 3 cm.