Table 2 The mean differences in frequencies and the proportions of categorical variables between all groups were tested by chi-square test
Groups | Control vs. T2D (p-value) | Control vs. CHD (p-value) | Control vs. T2D + CHD (p-value) | T2D vs. CHD (p-value) | T2D vs. T2D + CHD (p-value) | CHD vs. T2D + CHD (p-value) |
|---|---|---|---|---|---|---|
Variable | ||||||
 Smoking | 0.17 | 0.06 | 0.04 | 0.36 | 0.63 | 0.69 |
 Race | 0.64 | 0.12 | 0.24 | 0.30 | 0.67 | 0.58 |
 Family history | 0.62 | 0.008 | 0.003 | 0.02 | 0.01 | 0.70 |