Anthropometric and metabolic features of young Japanese women grouped by tertile of AT-IR index
| AT-IR index | ||||||||||
| Low | Median | High | ||||||||
| Range | −1.86 | 1.87–3.30 | 3.40 | * | ||||||
| Age (years) | 20.8 | ± | 1.3 | 20.7 | ± | 1.2 | 20.7 | ± | 1 | |
| BMI (kg/m2) | 20.6 | ± | 1.5 | 20.6 | ± | 1.6 | 20.5 | ± | 1.3 | |
| Waist (cm) | 71.6 | ± | 5.1 | 71.5 | ± | 4.9 | 71.2 | ± | 5 | |
| Trunk/leg fat ratio | 1.24 | ± | 0.18 | 1.25 | ± | 0.22 | 1.34 | ± | 0.29 | |
| % body fat (%) | 28 | ± | 4.7 | 27.1 | ± | 4.5 | 28.2 | ± | 4.4 | |
| ASM index (kg/m2) | 5.9 | ± | 0.5 | 6 | ± | 0.4 | 5.8 | ± | 0.4 | |
| FMI (kg/m2) | 5.7 | ± | 1.3 | 5.5 | ± | 1.3 | 5.7 | ± | 1.2 | |
| %ASM (%) | 28.8 | ± | 2.1 | 29.1 | ± | 1.9 | 28.5 | ± | 2 | |
| Leptin (ng/mL) | 7.5 | ± | 3.3 | 8.4 | ± | 3.5 | 8.9 | ± | 3.7 | |
| Adiponectin (mg/L) | 11.7 | ± | 4 | 11.8 | ± | 4.6 | 11.3 | ± | 4.2 | |
| Fasting glucose (mg/dL) | 80 | ± | 7 | 81 | ± | 5 | 83 | ± | 6 | ‡ |
| 2-hour glucose (mg/dL) | 89 | ± | 20 | 96 | ± | 25 | 94 | ± | 25 | |
| Fasting insulin (μU/mL) | 3.5 | ± | 1.4 | 5.5 | ± | 1.4 | 9 | ± | 3.2 | †‡§ |
| HOMA-IR | 0.6 | ± | 0.3 | 1.1 | ± | 0.3 | 1.8 | ± | 0.7 | †‡§ |
| AT-IR | 1.4 | ± | 0.4 | 2.6 | ± | 0.4 | 6.3 | ± | 3.4 | †‡§ |
Mean±SD: n=55 or 56, except for 2-hour glucose: n=40, 34 and 25 in low, median and high tertile, respectively.
*P<0.05 or less by Bonferroni's multiple comparison procedure.
†Low versus median.
‡Low versus high.
§Median versus high.
ASM, appendicular skeletal muscle mass; AT-IR, adipose tissue-insulin resistance; BMI, body mass index; % body fat, percentage body fat; FMI, fat mass index; HOMA-IR, homeostasis model assessment-insulin resistance.