Table 1.
Quartiles for biomarkers and metrics.
| Quartiles | Troponin I (ng/L) | Troponin glycation rate (TGR) | Troponin glycation index (TGI) | LDL (mg/dl) | LDL glycation rate (LGR) | LDL glycation index (LGI) |
|---|---|---|---|---|---|---|
| 1 | 1.6–2.4a | 1.0–1.15 | 1.6–2.8 | 60–90d | 1.0–1.15 | 60–104 |
| 2 | 2.5–3.3 | 1.16–1.31 | 2.9–4.3 | 91–121 | 1.16–1.31 | 105–160 |
| 3 | 3.4–4.5/5.0b | 1.32–1.50 | 4.4–6.75/7.5c | 122–152 | 1.32–1.50 | 161–228 |
| 4 | >4.5: femaleb | >1.50e | >6.75c | 153–180 | >1.50e | 229–270 |
| 4 | >5.0: maleb | >1.50e | >7.5c | 153–180 | >1.50e | 229–270 |
Upper allowable limits for the calculations are: LDL: 180 mg/dl. A1c: 48 mmol/mol (6.5%). Fructosamine: 285 umol/L. Troponin I: 4.5 ng/L for females and 5 ng/L for males. a1.6 ng/L is the limit of detection (LOD) for troponin I assay (104). bROC risk cut off for females >4.5 ng/L and males >5 ng/L (65, 67, 69). cTGI >6.75 for females: > 7.5 for males. d60–80 mg/dL is concentration limiting atherosclerosis development (86). e>1.5 requires exclusionary value of A1c > 48 mmol/mol (>6.5%).