Table 1.
Characteristics of the study population
| Variables |
Unpolluted area (n = 204) |
Cd‐polluted area (n = 250) |
P‐value |
|---|---|---|---|
| Age (years) | 58.50 ± 8.90 | 57.98 ± 8.68 | 0.521 |
| BMI (kg/m2) | 24.56 ± 3.47 | 24.41 ± 3.22 | 0.639 |
| FBG (mmol/L) | 5.85 ± 1.62 | 4.95 ± 1.61 | 0.000* |
| Sex, n (%) | |||
| Male | 88 (43.14) | 100 (40.00) | 0.500 |
| Female | 116 (56.86) | 150 (60.00) | |
| Smoking status, n (%) | |||
| Non‐smoker | 126 (61.77) | 154 (61.60) | 0.995 |
| Current smoker | 59 (28.92) | 72 (28.80) | |
| Former smoker | 19 (9.31) | 24 (9.60) | |
| FBG status, n (%) | |||
| NFG group | 115 (56.4) | 171 (68.4) | 0.022* |
| IFG group | 69 (33.8) | 57 (22.8) | |
| DM group | 20 (9.80) | 22 (8.80) | |
Total n = 454. *P < 0.05. BMI, body mass index; DM, diabetes mellitus; FBG, fasting blood glucose; IFG, impaired fasting glucose; NFG, normal fasting glucose.