Table 1.
Characteristics of prepubertal children aged 6–10 years, Bucaramanga, Colombia
| HOMAIR < 95th percentile | HOMAIR ≥ 95th percentile | ||||||
|---|---|---|---|---|---|---|---|
| Mean | sd | Mean | sd | P* | |||
| n | 1198 | 63 | |||||
| Age (years) | 8·4 | 1·4 | 8·5 | 1·4 | 0·92 | ||
| Sex (% female) | 48·6 | 52·4 | 0·56 | ||||
| Household income strata (% highest)† | 16·1 | – | 22·2 | – | 0·20 | ||
| Height (cm) | 127·4 | 9·5 | 132·3 | 9·2 | <0·0001 | ||
| Height (SDS)‡ | −0·4 | 1·0 | 0·4 | 1·2 | <0·0001 | ||
| BMI (kg/m2) | 16·4 | 2·4 | 19·9 | 3·1 | <0·0001 | ||
| BMI (SDS)‡ | −0·1 | 1·1 | 1·2 | 0·8 | <0·0001 | ||
| Brachial circumference (cm) | 18·1 | 2·5 | 21·4 | 2·8 | <0·0001 | ||
| Hip circumference (cm) | 64·8 | 7·2 | 73·7 | 7·6 | <0·0001 | ||
| Waist circumference (cm) | 56·1 | 6·8 | 65·9 | 8·7 | <0·0001 | ||
| Waist-to-height ratio | 0·44 | 0·04 | 0·50 | 0·05 | <0·0001 | ||
| Abdominal skinfold (mm) | 10·8 | 6·7 | 22·1 | 9·2 | <0·0001 | ||
| Subscapular skinfold (mm) | 8·1 | 3·8 | 14·1 | 5·6 | <0·0001 | ||
| Biceps skinfold (mm) | 7·0 | 2·9 | 11·1 | 3·9 | <0·0001 | ||
| Triceps skinfold (mm) | 9·8 | 3·7 | 14·5 | 4·1 | <0·0001 | ||
| HOMAIR (AU) | 1·1 | 0·6 | 3·4 | 1·0 | <0·0001 | ||
| Fasting insulin (IU/l) | 5·4 | 3·0 | 16·1 | 4·9 | <0·0001 | ||
HOMAIR, homeostasis model assessment of insulin resistance; AU, arbitrary units; IU, international units.
*P values are based on independent-sample t tests and Wilcoxon–Mann–Whitney tests (for non-normally distributed variables).
†According to the city's classification of neighbourhoods’ public services fees.
‡SDS = standard deviation score based the Centers for Disease Control and Prevention charts, 2010.