Table 3 The magnitude of agreement and the extent of misclassification on using different anthropometric measures instead of total skinfold thickness for measurement of body fat in pregnant women (90th percentile cut off). [N = 3719]
Anthropometric measure | Cut-off # | Total skin fold thickness percentile | Total misclassification (%) | Kappa coefficient (95 % CI) | |
|---|---|---|---|---|---|
< 90th percentile | > 90th percentile | ||||
Body weight (kg) | < 66.89 | 2799 (75.26) | 90 (2.42) | 17.32 | 0.38* (0.34–0.41) |
≥ 66.89 | 554 (14.90) | 276 (7.42) | |||
Head circumference (cm) | < 53.39 | 2304 (61.95) | 158 (4.25) | 32.46 | 0.12** (0.1–0.15) |
≥ 53.39 | 1049 (28.21) | 208 (5.59) | |||
Mid-upper Arm Circumference (cm) | < 29.20 | 2885 (77.60) | 90 (2.42) | 15.01 | 0.42*** (0.38–0.46) |
≥ 29.20 | 468 (12.59) | 275 (7.40) | |||
BMI (kg/m2) | < 27.82 | 2746 (73.84) | 81 (2.18) | 18.5 | 0.36* (0.33–0.40) |
≥ 27.82 | 607 (16.32) | 285 (7.66) | |||