Table 5.
Comparison of FBG and FSI among different groups in categorical variables in prediabetic subjects†.
| Variables | n | Mean FBG (mmol/L) ± SD | p value | Mean FSI∗ (pmol/L) ± SD | p value |
|---|---|---|---|---|---|
| Gender | |||||
| Male | 12 | 6.0 ± 0.3 | p > 0.05 | 87.1 ± 2.1 | p < 0.05 |
| Female | 11 | 6.1 ± 0.5 | 43.6 ± 2.1 | ||
| Monthly income | |||||
| <Rs. 25,000 (<USD 175) | 4 | 5.8 ± 0.2 | p < 0.05 | 52.4 ± 2.5 | p > 0.05 |
| ≥Rs. 25,000 (≥USD 175) | 19 | 6.1 ± 0.4 | 64.5 ± 2.2 | ||
| Familial diabetes | |||||
| Yes | 15 | 6.0 ± 0.4 | p > 0.05 | 69.1 ± 1.9 | p > 0.05 |
| No | 8 | 6.0 ± 0.4 | 50.1 ± 2.6 | ||
| Smoking | |||||
| Yes | 4 | 6.1 ± 0.4 | p > 0.05 | 63.1 ± 2.3 | p > 0.05 |
| No | 19 | 6.0 ± 0.2 | 69.1 ± 1.8 | ||
| Vigorous physical activity | |||||
| <2.3 h | 20 | 6.1 ± 0.4 | p > 0.05 | 69.1 ± 2.2 | p > 0.05 |
| >2.3 h | 3 | 5.9 ± 0.3 | 69.1 ± 1.5 | ||
| Moderate physical activity | |||||
| <3.5 h | 5 | 5.7 ± 0.2 | p > 0.05 | 72.4 ± 1.6 | p > 0.05 |
| >3.5 h | 18 | 6.1 ± 0.4 | 60.3 ± 2.3 | ||
| Sitting | |||||
| <7.6 h | 2 | 5.8 ± 0.0 | p < 0.01 | 67.6 ± 1.8 | p > 0.05 |
| >7.6 h | 21 | 6.1 ± 0.4 | 61.6 ± 2.2 | ||
| Walking | |||||
| <3.5 h | 4 | 6.1 ± 0.5 | p > 0.05 | 107.1 ± 2.1 | p > 0.05 |
| >3.5 h | 19 | 6.0 ± 0.4 | 56.2 ± 2.1 | ||
| Day time sleeping | |||||
| Yes | 6 | 6.1 ± 0.5 | p > 0.05 | 67.6 ± 2.3 | p > 0.05 |
| No | 17 | 6.0 ± 0.2 | 50.1 ± 2.1 | ||
| Sleeping at night | |||||
| <6 h | 5 | 6.0 ± 0.2 | p > 0.05 | 85.1 ± 2.5 | p > 0.05 |
| >6 h | 18 | 6.1 ± 0.5 | 57.5 ± 2.1 |
†Independent sample t-test in 23 subjects with prediabetes.
∗Geometric mean of FSI was used (transformed from the natural logarithm).
FBG: fasting blood glucose; FSI: fasting serum insulin; SD: standard deviation.