Table 1 Clinical and demographic characteristics of the subjects.
From: Reference values for body composition in healthy urban Mexican children and adolescents
n = 1659 | Young children n = 135 (8%) | Children n = 702 (42%) | Adolescents n = 611 (37%) | Young adults n = 211 (13%) |
|---|---|---|---|---|
Sex | ||||
Female n (%) | 71 (53%) | 304 (43%) | 310 (51%) | 121 (57%) |
Male n (%) | 64 (47%) | 398 (57%) | 301 (49%) | 90 (43%) |
Age (years) | 5.4 ± 0.4 | 8.9 ± 1.7 | 15.1 ± 1.7 | 19.2 ± 0.9 |
Weight (kg) | 19.5 ± 3.8 | 30.2 ± 9.4 | 54.5 ± 11.1 | 60.9 ± 12.2 |
Height (cm) | 110.2 ± 5.9 | 130.9 ± 11.7 | 160.2 ± 8.9 | 164.4 ± 9 |
Height Z-scoreWHO | −0.23 ± 1.05 | −0.30 ± 0.98 | −0.53 ± 0.96 | −0.54 ± 0.86 |
BMI (kg/m2) | 16 ± 2.2 | 17.3 ± 3 | 21.1 ± 3.4 | 22.49 ± 3.7 |
BMI Z−scoreWHO | 0.22 ± 1.32 | 0.11 ± 1.12 | 0.14 ± 1.02 | -0.05 ± 1.05 |
Waist circumference (cm) | 53.4 ± 5.3 | 60.5 ± 8.7 | 72.6 ± 8.1 | 76.3 ± 8.1 |
Systolic blood pressure (mmHg) | 94 ± 7 | 97 ± 8 | 105 ± 9 | 110 ± 11 |
Diastolic blood pressure (mmHg) | 59 ± 6 | 61 ± 6 | 65 ± 6 | 68 ± 6 |
Waist-height index | 0.49 ± 0.04 | 0.46 ± 0.05 | 0.45 ± 0.05 | 0.47 ± 0.06 |
Tanner´s puberal stage | ||||
I | 135 (100%) | 535 (76%) | 12 (2%) | 0 |
II | 0 | 120 (17%) | 36 (6%) | 0 |
III | 0 | 41 (6%) | 140 (23%) | 0 |
IV | 0 | 6 (1%) | 278 (46%) | 28 (13%) |
V | 0 | 0 | 145 (24%) | 183 (87%) |
BMI category | ||||
Healthy weight | 94 (70%) | 495 (71%) | 455 (75%) | 161 (76%) |
Overweight | 15 (11%) | 99 (14%) | 101 (17%) | 28 (13%) |
Obesity | 14 (10%) | 65 (9%) | 29 (5%) | 6 (3%) |
Low weight | 11 (9%) | 43 (6%) | 25 (4%) | 16 (8%) |
