Table 2.
Performance of anthropometric indicators as predictors of metabolic syndrome
| Sensitivity (CI95%) | Specificity (CI95%) | Area under the curve (CI95%) | ||||
|---|---|---|---|---|---|---|
| 12–15 years | 16–20 years | 12–15 years | 16–20 years | 12–15 years | 16–20 years | |
| Waist circumference | ||||||
| Girls | 61.2 (55.1–67.5) | 66.7 (59.9–73.9) | 62.1 (56.7–67.7) | 67.2 (61.1–73.6) | 0.70 (0.66–0.75) | 0.73 (0.68–0.78) |
| Boys | 57.4 (51.9–63.2) | 62.5 (56.4–68.3) | 57.9 (53.0–63.1) | 63.2 (56.9–69.5) | 0.66 (0.61–0.72) | 0.71 (0.66–0.77) |
| χ2 Test | 1.984 (ns) | 2.663 (ns) | 2.486 (ns) | 2.495 (ns) | 4.183 (p = 0.032) | 2.137 (ns) |
| Body mass index | ||||||
| Girls | 62.9 (57.0–68.9) | 67.8 (61.5–74.3) | 62.3 (57.2–67.5) | 67.4 (61.4–73.6) | 0.71 (0.67–0.76) | 0.73 (0.67–0.79) |
| Boys | 58.8 (53.1–64.7) | 63.1 (57.2–69.2) | 59.3 (53.8–64.9) | 64.2 (59.1–69.4) | 0.67 (0.62–0.73) | 0.72 (0.67–0.78) |
| χ2 Test | 2.417 (ns) | 5.011 (p = 0.043) | 1.438 (ns) | 1.612 (ns) | 4.258 (p = 0.028) | 1.738 (ns) |
| Waist/Height ratio | ||||||
| Girls | 65.9 (59.7–72.3) | 69.7 (63.4–76.2) | 66.2 (60.5–72.0) | 70.1 (64.2–76.2) | 0.73 (0.68–0.79) | 0.76 (0.71–0.82) |
| Boys | 60.7 (54.8–66.8) | 64.5 (58.6–70.6) | 61.1 (55.9–66.5) | 65.3 (60.4–70.4) | 0.69 (0.65–0.74) | 0.74 (0.70–0.79) |
| χ2 Test | 5.846 (p = 0.015) | 6.101 (p < 0.001) | 5.312 (p = 0.031) | 5.152 (p = 0.044) | 4.496 (p = 0.018) | 2.471 (ns) |
| Conicity index | ||||||
| Girls | 60.2 (54.4–66.2) | 62.6 (56.7–68.6) | 60.4 (55.7–65.3) | 64.1 (59.9–68.5) | 0.68 (0.64–0.72) | 0.71 (0.67–0.76) |
| Boys | 55.6 (49.8–61.5) | 58.4 (52.9–64.1) | 55.8 (50.3–61.2) | 60.0 (59.1–64.2) | 0.64 (0.60–0.69) | 0.68 (0.63–0.73) |
| χ2 Test | 4.973 (p = 0.047) | 2.542 (ns) | 4.814 (p = 0.049) | 2.531 (ns) | 3.879 (p = 0.042) | 2.989 (ns) |
ns not significant, CI 95% confidence interval of 95%