Table 1. Characteristics of subjects in validation study of self-reported type 2 diabetes in Shanghai (n = 4,322).
| No self-reported diabetes (n = 3,714) |
Self-reported diabetes (n = 608) |
2-sided Pa | |||
| number | (%) | number | (%) | ||
| Age at baseline, years | |||||
| <60 | 3,022 | (81.4) | 464 | (76.3) | 0.004 |
| ≥60 | 692 | (18.6) | 144 | (23.7) | |
| Gender | |||||
| Male | 2,235 | (60.2) | 406 | (66.8) | 0.002 |
| Female | 1,479 | (39.8) | 202 | (33.2) | |
| Educational level | |||||
| Middle school and below | 1,874 | (50.5) | 336 | (55.3) | 0.030 |
| High school and above | 1,835 | (49.5) | 272 | (44.7) | |
| BMI, kg/m2 | |||||
| <28 | 3,415 | (92.0) | 471 | (77.5) | <0.001 |
| ≥28 | 298 | (8.0) | 137 | (22.5) | |
| Ever smoker | |||||
| No | 2,174 | (58.5) | 321 | (52.8) | 0.008 |
| Yes | 1,540 | (41.5) | 287 | (47.2) | |
| Ever drinker | |||||
| No | 2,880 | (77.5) | 480 | (78.9) | 0.440 |
| Yes | 834 | (22.5) | 128 | (21.1) | |
| Have a family history of diabetes in first-degree relatives | |||||
| No | 3,002 | (81.7) | 399 | (66.5) | <0.001 |
| Yes | 673 | (18.3) | 201 | (33.5) | |
BMI, body mass index.
aAnalysis of Chi-square test for categorical variables.
Data are shown as a number (%).