Table 4.
Comparison of FBG and FSI among different groups in categorical variables in total study population†.
| Variables | n | Mean FBG (mmol/L) ± SD | p value | Mean FSI∗ (pmol/L) ± SD | p value |
|---|---|---|---|---|---|
| Gender | |||||
| Male | 91 | 4.8 ± 0.6 | p < 0.01 | 40.7 ± 2.2 | p > 0.05 |
| Female | 136 | 4.5 ± 0.7 | 42.6 ± 2.1 | ||
| Monthly income | |||||
| <Rs. 25,000 (<USD 175) | 67 | 4.6 ± 0.6 | p > 0.05 | 36.3 ± 2.1 | p > 0.05 |
| ≥Rs. 25,000 (≥USD 175) | 160 | 4.7 ± 0.7 | 43.6 ± 2.1 | ||
| Familial diabetes | |||||
| Yes | 108 | 4.7 ± 0.7 | p > 0.05 | 44.7 ± 2.1 | p > 0.05 |
| No | 119 | 4.6 ± 0.6 | 38.9 ± 2.1 | ||
| Smoking | |||||
| Yes | 19 | 4.7 ± 0.6 | p > 0.05 | 42.6 ± 1.9 | p > 0.05 |
| No | 126 | 4.7 ± 0.6 | 35.4 ± 1.9 | ||
| Vigorous physical activity | |||||
| <2.3 h | 153 | 4.7 ± 0.7 | p > 0.05 | 46.7 ± 2.1 | p < 0.01 |
| >2.3 h | 74 | 4.6 ± 0.6 | 33.1 ± 1.9 | ||
| Moderate physical activity | |||||
| <3.5 h | 54 | 4.5 ± 0.6 | p > 0.05 | 46.8 ± 2.1 | p > 0.05 |
| >3.5 h | 173 | 4.7 ± 0.7 | 39.8 ± 2.1 | ||
| Sitting | |||||
| <7.6 h | 32 | 4.5 ± 0.6 | p > 0.05 | 30.9 ± 2.1 | p < 0.01 |
| >7.6 h | 195 | 4.7 ± 0.7 | 43.7 ± 2.1 | ||
| Walking | |||||
| <3.5 h | 30 | 4.7 ± 0.7 | p > 0.05 | 48.9 ± 2.7 | p > 0.05 |
| >3.5 h | 197 | 4.6 ± 0.7 | 40.7 ± 2.0 | ||
| Day time sleeping | |||||
| Yes | 46 | 4.7 ± 0.7 | p > 0.05 | 40.7 ± 2.2 | p > 0.05 |
| No | 181 | 4.7 ± 0.7 | 43.7 ± 1.9 | ||
| Sleeping at night | |||||
| <6 h | 43 | 4.9 ± 0.6 | p < 0.01 | 38.9 ± 2.5 | p > 0.05 |
| >6 h | 184 | 4.5 ± 0.7 | 42.7 ± 2.0 |
†Independent sample t-test in 227 subjects.
∗Geometric mean of FSI was used (transformed from the natural logarithm).
FBG: fasting blood glucose; FSI: fasting serum insulin; SD: standard deviation.