Table 1.
Descriptive statistics for each race-gender group, mean (SD)
| Whites | Blacks | Significance | |||
|---|---|---|---|---|---|
|
| |||||
| Boys (n=120) | Girls (n=127) | Boys (n=102) | Girls (n=92) | ||
| Age (y) | 16.3 (1.2) | 16.0 (1.3) | 16.0 (1.2) | 16.5 (1.2) | Race × Gender, p=0.0058 BG > Whites & BB |
| Height (cm) | 174.1 (6.8) | 163.2 (6.0) | 175.0 (7.4) | 162.5 (6.0) | Gender, p<0.0001 |
| Weight (kg) | 70.1 (15.0) | 58.2 (10.6) | 71.4 (16.2) | 65.5 (15.7) | Race, p=0.0010 Gender, p<0.0001 |
| BMI (kg/m2) | 23.1 (4.4) | 21.8 (3.5) | 23.2 (4.6) | 24.8 (6.0) | Race × Gender, p=0.0041 BG > Boys > WG |
| % Body Fat | 19.6 (8.6) | 29.4 (6.9) | 16.9 (8.4) | 30.0 (8.4) | Race × Gender, p=0.0242 Girls > WB > BB |
| Adiponectin (μg/mL) | 15.7 (7.9) | 21.7 (9.8) | 14.9 (10.0) | 15.6 (8.5) | Race × Gender, p=0.0017 WG > Blacks & WB |
| * Leptin (ng/mL) | 2.8 (0.3–61.2) | 12.1 (1.3–57.5) | 2.3 (0.2–37.0) | 17.3 (2.8–77.3) | Race × Gender, p=0.0164 BG>WG>Boys |
WB=white boys WG=white girls BB=black boys BG=black girls
*
The distribution for fasting leptin was normalized by using a log transformation. Medians and ranges were reported for this variable based on the skewness of the distribution.