Table 4 Differences of various steady state surrogate insulin resistance markers in subjects with or without diabetes mellitus by using non-parametric assumptions (Mann–Whitney U test)
Insulin resistance surrogate markers | Diabetes diagnosis based upon HbA1c | N | Mean rank | Sum of ranks | Sig. (2-tailed) |
|---|---|---|---|---|---|
Serum insulin | HbA1c < 6.50% | 178 | 110.40 | 19,650.50 | 0.339 |
HbA1c > 6.50% | 46 | 120.64 | 5549.50 | ||
Total | 224 | ||||
Homeostasis Model Assessment for Insulin Resistance (HOMAIR) | HbA1c < 6.50% | 178 | 106.31 | 18,924.00 | 0.005 |
HbA1c > 6.50% | 46 | 136.43 | 6276.00 | ||
Total | 224 | ||||
Quantitative Insulin Sensitivity Check Index (QUICKI) | HbA1c < 6.50% | 178 | 109.95 | 19,571.00 | 0.247 |
HbA1c > 6.50% | 46 | 122.37 | 5629.00 | ||
Total | 224 | ||||
Homeostasis Model Assessment 2 index (HOMA2 index) | HbA1c < 6.50% | 178 | 108.61 | 19,333.00 | 0.077 |
HbA1c > 6.50% | 46 | 127.54 | 5867.00 | ||
Total | 224 | ||||
Fasting Insulin Resistance Index (FIRI) | HbA1c < 6.50% | 178 | 109.29 | 19,453.50 | 0.145 |
HbA1c > 6.50% | 46 | 124.92 | 5746.50 | ||
Total | 224 | ||||
Glucose insulin ratio (G/I ratio) | HbA1c < 6.50% | 178 | 106.99 | 19,044.00 | 0.012 |
HbA1c > 6.50% | 46 | 133.83 | 6156.00 | ||
Total | 224 |