Table 1.
HbA1c results in patients with haemoglobin (Hb) variants
| HbA1c | |||||
| Haemoglobin variant | Variant II | HA-8140 | DCA 2000 | Fructosamine | Fasting blood glucose |
| Non-diabetic reference range | 4.7–6% | 4.5–5.7% | 4.5–5.7% | <285 μmol/l | <6.1 mmol/l |
| Hb Graz 1 | No result | Abnormal sep | 5.9 | 466 | 11.8 |
| Hb Graz 2 | No result | Abnormal sep | 5.2 | 334 | 10.6 |
| Hb Sherwood Forest | No result | Abnormal sep | 4.6 | 238 | 5.5 |
| Hb D | 4.8 | 9.1 (variant Hb) | 5.7 | 302 | 6.5 |
| Hb O Padova 1 | 4.9 | 6.8 (variant Hb) | 4.5 | 251 | 6.0 |
| Hb O Padova 2 | 9.5 | 10 (variant Hb) | 8.8 | 338 | 5.2 |
Variant II, HPLC variant II (Bio-Rad); HA-8140, HPLC high-auto A1c HA-8140 (Menarini); DCA 2000, immunoagglutination DCA 2000 (Bayer); Abnormal sep, abnormal separation; variant Hb, variant haemoglobin.
HPLC, high performance liquid chromatography.