Table 2.
Distribution of uric acid by age, sex, and BMI.
| Boy | Girl | Total | P for difference | ||||
|---|---|---|---|---|---|---|---|
| N | M ± SD | N | M ± SD | N | M ± SD | ||
| Total | 2140 | 247.3 ± 53.7 | 1933 | 238.3 ± 52.4 | 4073 | 243.0 ± 53.2 | <0.001 |
| Age (years) | |||||||
| 6− < 7 | 783 | 248.1 ± 53.6 | 671 | 237.6 ± 48.6 | 1454 | 243.3 ± 51.6 | <0.001 |
| 5− < 6 | 921 | 248.6 ± 53.9 | 819 | 239.9 ± 52.1 | 1740 | 244.5 ± 53.2 | 0.001 |
| 4− < 5 | 289 | 242.9 ± 55.9 | 292 | 238.8 ± 61.3 | 581 | 240.8 ± 58.7 | 0.409 |
| 3− < 4 | 147 | 243.1 ± 48.2 | 151 | 231.9 ± 51.3 | 298 | 237.4 ± 50.0 | 0.053 |
| P for trend | 0.310 | 0.365 | 0.130 | ||||
| Overweight/Obesity | |||||||
| Normal | 1580 | 242.3 ± 51.5 | 1585 | 235.2 ± 52.5 | 3165 | 238.7 ± 52.1 | <0.001 |
| Overweight* | 206 | 251.8 ± 52.7 | 177 | 246.1 ± 48.9 | 383 | 249.1 ± 51.0 | 0.275 |
| Obesity* | 354 | 267.0 ± 59.0 | 171 | 259.6 ± 49.0 | 525 | 264.6 ± 56.0 | 0.155 |
| P for trend | <0.001 | <0.001 | <0.001 | ||||
Data are means (SD).
*Overweight was defined as weight-for-BMI ≥ 85th percentile (≥1.035 Z score); Obesity was defined as weight-for-BMI ≥ 95th percentile (≥1.645 Z score); Sex-specific weight-for-BMI percentiles were based on WHO growth reference (World Health Organization, 2006).