Table 3.
Demographic, Anthropometric, and Fitness Variables, by Sex and Race/Ethnicity for Sixth-Grade Students (N = 199) in Two Inner-City Middle Schools, Los Angeles, California, 1999–2000 School Year
| Variable | Boys Mean (SD) | Girls Mean (SD) | African American Mean (SD) | Latino Mean (SD) |
|---|---|---|---|---|
| Age, y | 11.6 (0.06) | 11.6 (0.04) | NA | NA |
| Race/Ethnicity, n | NA | NA | 64-78a | 99-121a |
| African American, n | 38 | 40 | NA | NA |
| Latino, n | 51 | 70 | NA | NA |
| BMI, kg/m2 | 22.1 (6.1) | 22.0 (6.2) | 21.6 (7.4) | 22.3 (5.2) |
| BMI age- and sex-adjusted percentile | 71.6 (29.7) | 69.7 (30.5) | 63.4 (33.2) | 75.2b (27.0) |
| Time to run/walk 1 mile, min | 11.3 (2.9) | 12.0 (2.8) | 11.5 (3.0) | 11.8 (2.78 |
| Systolic BP, mm Hg | 112 (12.5) | 112 (12.0) | 111 (10.4) | 112 (13.2) |
| Diastolic BP, mm Hg | 69 (11.9) | 70 (13.4) | 73 (13.8) | 68c (11.7) |
| Systolic BP, age-, height-, and sex-adjusted percentile | 63.5 (28.9) | 66.0 (27.0) | 61.7 (27.9) | 67.2 (27.6) |
| Diastolic BP, age-, height-, and sex-adjusted percentile | 67.7 (23.2) | 67.6 (24.3) | 72.2 (23.2) | 64.7 (23.8) |
| Total serum cholesterol (nonfasting), mg/dL | 173.2 (33.1) | 172.5 (37.8) | 167.6 (42.3) | 176.2 (30.6) |
| HbA1c, % | 4.5 (0.5) | 4.7 (0.4) | 4.7 (0.5) | 4.6 (0.5) |
NA indicates not applicable; BMI, body mass index; BP, blood pressure; HbA1c, glycated hemoglobin.
a
Sample sizes vary slightly for individual measures because of missing data.
b
P < .05 African American vs Latino.
c
P < .01 African American vs Latino.