Table 1.
Clinical and biochemical characteristics of the 4606 Mexican students recruited in this study
| Men | Year |
|||||||
|---|---|---|---|---|---|---|---|---|
| 1994 | 1997 | 1998 | 1999 | 2008 | Total | P* | ||
| Lean | n (%) | 221 | 150 | 473 | 386 | 293 | 1523 | – |
| Age (mean ± SD) | 17.6 ± 1.5 | 18.3 ± 0.8 | 17.3 ± 1.5 | 17.3 ± 1.5 | 18.2 ± 0.7 | 17.6 ± 1.4 | NS | |
| Weight (Kg) | 61.6 ± 8.7 | 63.0 ± 7.9 | 61.3 ± 7.9 | 62.1 ± 7.9 | 63.4 ± 7.7 | 62.1 ± 8.0 | NS | |
| Height (cm) | 1.70 ± 0.07 | 1.72 ± 0.06 | 1.70 ± 0.07 | 1.71 ± 0.06 | 1.71 ± 0.06 | 1.71 ± 0.06 | NS | |
| BMI (Kg/m2) | 21.0 ± 2.1 | 21.1 ± 2.0 | 21.0 ± 2.1 | 21.1 ± 2.1 | 21.4 ± 1.9 | 21.1 ± 2.1 | NS | |
| WC (cm) | 76.4 ± 6.7 | 76.3 ± 5.9 | 75.7 ± 6.6 | 76.4 ± 6.5 | 78.0 ± 6.2 | 76.5 ± 6.5 | NS | |
| Glucose (mmol/l) | 4.9 ± 0.59 | 5.1 ± 0.6 | 5.0 ± 0.5 | 4.9 ± 0.5 | 4.9 ± 0.3 | 5.0 ± 0.5 | NS | |
| OW/OB | n (%) | 58 | 58 | 106 | 117 | 129 | 468 | – |
| Age (mean ± SD) | 17.7 ± 1.4 | 18.3 ± 1.0 | 17.6 ± 1.6 | 17.5 ± 1.3 | 18.2 ± 0.8 | 17.8 ± 1.3 | NS | |
| Weight (Kg) | 81.0 ± 11.4 | 81.7 ± 9.7 | 82.1 ± 12.5 | 83.8 ± 10.3 | 84.1 ± 11.2 | 83.4 ± 11.1 | <0.001 | |
| Height (cm) | 1.70 ± 0.07 | 1.74 ± 0.06 | 1.70 ± 0.07 | 1.72 ± 0.06 | 1.71 ± 0.05 | 1.71 ± 0.06 | NS | |
| BMI (Kg/m2) | 27.7 ± 2.5 | 27.3 ± 2.0 | 28.2 ± 3.5 | 27.7 ± 2.4 | 28.7 ± 3.4 | 28.0 ± 3.0 | 0.001 | |
| WC (cm) | 89.4 ± 8.7 | 90.1 ± 8.7 | 91.3 ± 11.3 | 91.8 ± 9.5 | 94.3 ± 9.6 | 91.7 ± 9.9 | <0.001 | |
| Glucose (mmol/l) | 5.0 ± 0.4 | 5.1 ± 0.4 | 5.2 ± 0.4 | 5.0 ± 0.4 | 5.0 ± 0.5 | 5.1 ± 0.4 | NS | |
| Women | ||||||||
| Lean | n (%) | 307 | 264 | 420 | 538 | 518 | 2047 | – |
| Age (mean ± SD) | 18.2 ± 1.5 | 18.1 ± 0.75 | 18.0 ± 1.0 | 17.9 ± 1.3 | 18.0 ± 0.6 | 17.8 ± 1.1 | NS | |
| Weight (Kg) | 53.1 ± 6.4 | 53.5 ± 6.6 | 54.1 ± 6.6 | 54.1 ± 6.3 | 53.4 ± 6.2 | 53.7 ± 6.4 | NS | |
| Height (cm) | 1.57 ± 0.06 | 1.59 ± 0.06 | 1.59 ± 0.06 | 1.58 ± 0.06 | 1.58 ± 0.05 | 1.58 ± 0.06 | NS | |
| BMI (Kg/m2) | 21.3 ± 2.1 | 21.0 ± 2.1 | 21.2 ± 2.0 | 21.5 ± 1.9 | 21.3 ± 2.0 | 21.3 ± 2.0 | NS | |
| WC (cm) | 69.9 ± 5.6 | 69.4 ± 6.3 | 70.6 ± 6.3 | 72.0 ± 6.4 | 73.2 ± 6.1 | 71.4 ± 6.3 | NS | |
| Glucose (mmol/l) | 4.8 ± 0.6 | 4.9 ± 0.5 | 5.0 ± 0.4 | 4.6 ± 0.5 | 4.7 ± 0.4 | 4.8 ± 0.5 | NS | |
| OW/OB | n (%) | 79 | 64 | 92 | 162 | 171 | 568 | – |
| Age (mean ± SD) | 17.8 ± 1.5 | 18.0 ± 0.6 | 18.0 ± 0.8 | 17.7 ± 1.2 | 18.1 ± 0.6 | 17.8 ± 1.1 | NS | |
| Weight (Kg) | 68.5 ± 8.4 | 70.2 ± 6.5 | 72.7 ± 9.9 | 71.0 ± 9.3 | 71.7 ± 11.8 | 71.0 ± 9.9 | 0.03 | |
| Height (cm) | 1.57 ± 0.06 | 1.59 ± 0.06 | 1.60 ± 0.07 | 1.59 ± 0.06 | 1.58 ± 0.06 | 1.59 ± 0.06 | NS | |
| BMI (Kg/m2) | 27.6 ± 2.4 | 27.5 ± 2.0 | 28.3 ± 3.0 | 28.9 ± 3.1 | 29.0 ± 3.7 | 28.6 ± 3.1 | 0.001 | |
| WC (cm) | 82.2 ± 7.1 | 82.0 ± 6.5 | 83.8 ± 8.6 | 84.1 ± 8.4 | 88.3 ± 9.2 | 84.8 ± 8.6 | <0.001 | |
| Glucose (mmol/l) | 5.1 ± 1.3 | 5.0 ± 1.4 | 5.0 ± 0.4 | 4.7 ± 0.5 | 4.9 ± 0.8 | 4.9 ± 0.8 | NS | |
*
Note: P values from a one-way ANOVA.
Abbreviations: OW, overweight; OB, obese; BMI, body mass index; WC, waist circumference; NS, not significant.