Table 3.
Comparison of clinical characteristics of subjects with fasting plasma glucose ≥126 mg/dL (≥7.0 mmol/L) stratified by HbA1c < or ≥ 6.5% (48 mmol/mol).
| Diabetes by fasting glucose | P | ||
|---|---|---|---|
| HbA1c < 6.5% (<48 mmol/mol) |
HbA1c ≥ 6.5% (≥48 mmol/mol) |
||
| n | 139 | 106 | |
| Age, year | 61 ± 15 | 59 ± 15 | NS |
| Gender, female | 49 (35.3%) | 39 (36.8%) | NS |
| Body mass index, kg/m2 | 31.4 ± 7.2 | 33.0 ± 7.0 | NS |
| Systolic blood pressure, mmHg | 129 ± 20 | 132 ± 20 | NS |
| Diastolic blood pressure, mmHg | 71 ± 13 | 71 ± 15 | NS |
|
| |||
| Current smoking, yes | 33 (23.7%) | 34 (32.1%) | NS |
| Alcohol consumption, yes | 98 (70.5%) | 69 (65.1%) | NS |
| Family history of diabetes, yes | 61 (43.9%) | 33 (31.1%) | NS |
|
| |||
| HbA1c, % | 5.8 ± 0.5 | 8.0 ± 1.8 | <0.0001 |
| HbA1c, mmol/mol | 40 ± 3 | 64 ± 14 | |
| Fasting plasma glucose, mg/dL | 136 ± 19 | 180 ± 58 | <0.0001 |
| Fasting plasma glucose, mmol/L | 7.6 ± 1.1 | 10.0 ± 3.2 | |
| Two-hour plasma glucose, mg/dL | 195 ± 64 | 315 ± 90 | <0.0001 |
| Two-hour plasma glucose, mmol/L | 10.8 ± 3.6 | 17.5 ± 5.0 | |
|
| |||
| Racial/ethnic group | NS | ||
| Mexican Americans | 26 (18.7%) | 26 (24.5%) | |
| Other Hispanics | 15 (10.8%) | 9 (8.5%) | |
| Non-Hispanic Whites | 79 (56.8%) | 48 (45.3%) | |
| Non-Hispanic Blacks | 18 (13.0%) | 19 (17.9%) | |
| Others | 1 (0.7%) | 4 (3.8%) | |
Mean ± standard deviation or n with percent; NS, not significant.