Table 1.
Demographic, anthropometric, and lipid profiles of schoolchildren from northern (NM) and central Mexico (CM) for the overall sample and by ethnic group.
| Boys, n = 572 | Girls, n = 405 | ||||
|---|---|---|---|---|---|
| All, n = 977 | Median | IQR | Median | IQR | p |
| Age | 9.0 | 4.0 | 9.0 | 3.0 | 0.29 |
| BMI | 17.6 | 6.7 | 17.0 | 4.6 | 0.01 |
| BMIz | −0.3 | 1.4 | −0.2 | 1.1 | 0.60 |
| TG | 87.0 | 61.9 | 85.5 | 51.0 | 0.91 |
| TC | 157.8 | 44.5 | 155.0 | 38.0 | 0.10 |
| HDL | 56.5 | 15.4 | 55.1 | 17.3 | 0.27 |
| LDL | 83.5 | 30.6 | 81.1 | 26.0 | 0.20 |
| ApoA1 | 153.0 | 52.0 | 153.0 | 58.0 | 0.23 |
| ApoB | 86.0 | 34.6 | 87.5 | 27.8 | 0.38 |
| CM-Mexico City, n = 325 | |||||
| Age | 9.0 | 4.0 | 9.0 | 4.0 | 0.42 |
| BMI | 20.4 | 8.3 | 18.5 | 5.4 | 0.02 |
| BMIz | 0.3 | 1.7 | 0.3 | 1.3 | 0.75 |
| TG | 102.0 | 75.0 | 102.0 | 52.5 | 0.71 |
| TC | 173.0 | 46.0 | 169.5 | 35.5 | 0.05 |
| HDL | 56.1 | 16.1 | 57.2 | 20.2 | 0.91 |
| LDL | 92.8 | 37.9 | 89.6 | 28.1 | 0.09 |
| ApoA1 | 152.0 | 42.0 | 142.0 | 34.3 | 0.01 |
| ApoB | 82.0 | 29.0 | 82.0 | 25.5 | 0.94 |
| CM-Puebla, n = 302 | |||||
| Age | 9.0 | 3.0 | 9.0 | 3.0 | 0.52 |
| BMI | 16.6 | 3.4 | 16.7 | 3.5 | 0.86 |
| BMIz | 0.5 | 0.8 | 0.3 | 0.8 | 0.02 |
| TG | 77.1 | 47.7 | 81.8 | 46.5 | 0.19 |
| TC | 145.3 | 31.4 | 141.5 | 32.5 | 0.82 |
| HDL | 54.8 | 15.4 | 49.7 | 14.3 | 0.01 |
| LDL | 79.8 | 19.2 | 79.5 | 27.0 | 0.21 |
| NM-Urban, n = 148 | |||||
| Age | 8.0 | 3.0 | 9.0 | 3.0 | 0.47 |
| BMI | 18.3 | 6.1 | 17.9 | 6.6 | 0.48 |
| BMIz | 01.0 | 1.3 | 01.0 | 1.4 | 0.47 |
| TG | 89.0 | 59.5 | 89.5 | 71.0 | 0.80 |
| TC | 167.0 | 48.0 | 170.5 | 37.0 | 0.61 |
| HDL | 63.6 | 16.6 | 67.4 | 16.3 | 0.38 |
| LDL | 84.0 | 33.3 | 85.4 | 25.1 | 0.97 |
| ApoA1 | 194.0 | 31.5 | 191.0 | 44.3 | 0.59 |
| ApoB | 100.3 | 21.9 | 94.0 | 21.8 | 0.15 |
| NM-Yaquis, n = 135 | |||||
| Age | 9.0 | 4.0 | 9.0 | 5.0 | 0.57 |
| BMI | 16.2 | 4.1 | 16.2 | 4.0 | 0.86 |
| BMIz | −0.6 | 0.9 | −0.4 | 0.9 | 0.50 |
| TG | 79.0 | 51.5 | 88.0 | 38.0 | 0.13 |
| TC | 145.5 | 32.0 | 151.0 | 28.0 | 0.16 |
| HDL | 55.7 | 11.9 | 52.7 | 11.1 | 0.24 |
| LDL | 72.4 | 17.5 | 77.1 | 18.1 | 0.06 |
| ApoA1 | 139.5 | 29.3 | 135.0 | 22.0 | 0.14 |
| ApoB | 68.5 | 21.4 | 74.0 | 14.0 | 0.07 |
| NM-Seris, n = 67 | |||||
| Age | 9.5 | 3.0 | 10.0 | 2.3 | 0.72 |
| BMI | 17.6 | 4.0 | 17.3 | 4.0 | 0.89 |
| BMIz | −0.5 | 0.8 | −0.4 | 1.0 | 0.75 |
| TG | 77.0 | 44.0 | 73.0 | 21.8 | 0.71 |
| TC | 152.0 | 36.3 | 148.0 | 29.3 | 0.56 |
| HDL | 54.5 | 6.3 | 54.4 | 9.0 | 0.81 |
| LDL | 68.3 | 21.7 | 72.3 | 15.6 | 0.32 |
| ApoA1 | 145.0 | 19.0 | 139.0 | 28.3 | 0.35 |
| ApoB | 65.0 | 24.6 | 67.5 | 14.8 | 0.40 |
Interquartile range (IQR) and p-value (p) from Mann-Whitney U test gender pairwise comparisons. Body mass index (BMI), BMI z-score (BMIz), triglycerides (TG, mg/dL), total cholesterol (TC, mg/dL), high density lipoprotein (HDL in mg/dL), low density lipoprotein (LDL in mg/dL), apolipoprotein A1, (ApoaA, mg/dL), apolipoprotein B, (ApoB mg/dL).