Table 1.
Characteristics of among a population‐based sample of schoolchildren in Bogota, Colombia [mean (SD) or frequencies (%)]
| Characteristics | Boys (n = 3211) | Girls (n = 4033) | Total (n = 7244) |
|---|---|---|---|
| Age (years) | 12.9 (2.3) | 12.8 (2.4)* | 12.8 (2.3) |
| Body mass (kg) | 45.0 (13.0) | 44.8 (11.4)** | 44.6 (12.3) |
| Height (m) | 1.50 (0.13) | 1.47 (0.10)* | 1.49 (0.12) |
| BMI (kg/m2) | 19.3 (3.3) | 20.3 (3.5)* | 19.7 (3.4) |
| Weight status n,(%) | |||
| Underweight | 930 (29) | 1209 (31)* | 2139 (29) |
| Normal weight | 1697 (53) | 1828(45)* | 3525 (49) |
| Overweight | 405 (13) | 658 (16)* | 1063 (15) |
| Obese | 179 (6) | 338 (8)* | 517 (7) |
| Waist circumference (cm) | 66.3 (8.2) | 65.0 (8.1)* | 65.6 (8.1) |
| Sexual maturation status n,(%) | |||
| I | 244 (8) | 710 (18)* | 954 (13) |
| II | 988 (31) | 960 (24)* | 1948 (27) |
| III | 922 (29) | 981 (24)* | 1903 (26) |
| IV | 833 (26) | 1189 (29)* | 2022 (28) |
| V | 224 (7) | 193 (5)* | 417 (6) |
| V˙O2peak (ml kg−1 min−1)a | 42.4 (5.2)* | 38.5 (4.8)* | 40.2 (5.3) |
| V˙O2peak altitude‐adjusted (ml kg−1 min−1)b | 47.1 (5.8)* | 42.7 (5.3)* | 44.6 (5.9) |
| Shuttles (total count) | 36.6 (20.0)* | 22.3 (11.3)* | 28.7 (17.3) |
| Stage (last completed) | 4.4 (2.2)* | 2.8 (1.3)* | 3.5 (2.0) |
| Running speed at last completed shuttle (km h−1) | 9.9 (2.1) * | 9.0 (1.8)* | 3.5 (2.0) |
| FITNESSGRAM (fitness zones) n,(%)c | |||
| Needs improvement | 538 (16.8)* | 1039 (25.8)* | 1577 (21.8) |
| Health risk | 904 (28.2)* | 1373 (34.1)* | 2277 (31.5) |
| FITNESSGRAM (fitness zones) n,(%)b | |||
| Needs improvement | 268 (8.3)* | 573 (14.2)* | 841 (11.6) |
| Health risk | 308 (9.6)* | 530 (13.1)* | 838 (11.5) |
Note: Frequencies in brackets represent the proportion of the total sample with data for each variable.
Significant between‐sex differences (ANOVA one way test or Chi‐square; *P < .001; **P < .01).
a
VO2peak (ml kg−1 min−1) predicted using the Leger et al. equation (1988).
b
V˙O2peak (ml kg−1 min−1) predicted using the Leger et al. equation (1988) and adjusted by an altitude correction factor (1.11).
c
To classify V˙O2peak, we used the 2011 FITNESSGRAM® standards and Healthy Fitness Zones (Welk et al., 2011).