Table 1.
The weighted characteristics of the data from the Korean National Health and Nutrition Examination Survey (KNHANES) 2010.
| Normal (n = 3,681) |
Prediabetes (n = 1,004) |
P* | |
|---|---|---|---|
| Age (years) | 41.9 ± 0.5 [41.0–42.8] |
52.5 ± 0.6 [51.3–53.7] |
<0.001 |
| Gender (% men) | 46.9 (0.9) [45.2–48.7] |
58.8 (1.9) [55.0–62.5] |
<0.001 |
| Family history of diabetes (%) | 18.3 (0.9) [16.6–20.2] |
22.9 (1.7) [19.8–26.4] |
0.007 |
| Current smoker (%) | 27.5 (1.0) [25.5–29.6] |
26.9 (1.9) [23.4–30.8] |
0.799 |
| Alcohol intake (drinks/day) | 0.8 ± 0.0 [0.7–0.9] |
1.0 ± 0.1 [0.9–1.2] |
<0.001 |
| Physically active (%) | 50.6 ± 1.1 [48.4–52.9] |
52.1 ± 2.1 [48.0–56.3] |
0.535 |
| BMI (kg/m2) | 23.2 ± 0.1 [23.1–23.3] |
25.1 ± 0.1 [24.8–25.3] |
<0.001 |
| Waist circumference (cm) | 79.1 ± 0.2 [78.7–79.6] |
85.8 ± 0.4 [85.1–86.6] |
<0.001 |
| FPG (mg/dL) | 89.0 ± 0.1 [88.7–89.3] |
107.4 ± 0.3 [106.9–108.0] |
<0.001 |
| Systolic blood pressure (mmHg) | 116.8 ± 0.4 [116.0–117.5] |
127.7 ± 0.7 [126.4–129.1] |
<0.001 |
| Diastolic blood pressure (mmHg) | 76.4 ± 0.3 [75.8–77.0] |
81.5 ± 0.5 [80.6–82.4] |
<0.001 |
| Hypertension (%) | 16.4 (0.8) [14.9–18.0] |
41.1 (2.2) [36.8–45.5] |
<0.001 |
BMI: body mass index; FPG: fasting plasma glucose.
Table values are given as mean ± standard error or % (standard error) [95% confidence interval] unless otherwise indicated. P* were obtained by t-test or chi-square test.
Impaired fasting glucose was considered with values ≥ 100 mg/dL and <126 mg/dL.