Table 2.
Demographic information and socioeconomic status of cases and controls
| Cases | Controls | P-value | |
|---|---|---|---|
| n | 372 | 145 | |
| Age (mean ± SD) | 63.39 ± 10.60 | 62.34 ± 10.75 | 0.31 |
| Sex (male/female) | 146/226 | 49/96 | 0.25 |
| Education level | 0.95 | ||
| Less than primary and primary (%) | 209 (56%) | 84 (57.9%) | |
| Junior and senior middle (%) | 110 (29.5%) | 42 (28.9%) | |
| Junior college (%) | 36 (9.8%) | 12 (8.2%) | |
| College and above (%) | 17 (4.7%) | 7 (5%) | |
| Income group ¥ | 0.73 | ||
| <1000 (%) | 85 (22.8%) | 38 (26.2%) | |
| 1000–2999 (%) | 242 (65.1%) | 92 (63.4%) | |
| 2999–5999 (%) | 39 (10.4%) | 14 (9.7%) | |
| ≥6000 (%) | 6 (1.7%) | 1 (0.7%) | |
| Marital status | 0.84 | ||
| Single (%) | 6 (1.6%) | 1 (0.7%) | |
| Married (%) | 322 (86.6%) | 125 (86.2%) | |
| Widowed (%) | 2 (0.6%) | 1 (0.7%) | |
| Divorce (%) | 42 (11.2%) | 18 (12.4%) | |
| BMI (kg/m2) | 24.48 ± 3.45 | 24.22 ± 3.36 | 0.43 |
| WHR | 0.92 ± 0.14 | 0.91 ± 0.09 | 0.42 |
| SBP (mmHg) | 133.85 ± 16.48 | 133.18 ± 15.78 | 0.67 |
| DBP (mmHg) | 80.62 ± 10.46 | 79.97 ± 9.53 | 0.51 |
| TC (mmol/L) | 5.49 ± 1.02 | 5.45 ± 1.01 | 0.68 |
| TG (mmol/L) | 2.21 ± 1.27 | 2.17 ± 1.13 | 0.74 |
| HDL-C (mmol/L) | 1.30 ± 0.31 | 1.31 ± 0.32 | 0.74 |
| LDL-C (mmol/L) | 2.81 ± 0.46 | 2.90 ± 0.44 | 0.04 |
| FBG (%) | 8.47 ± 3.43 | 7.58 ± 3.68 | 0.009 |
| 2hPG (%) | 13.01 ± 4.36 | 11.98 ± 4.22 | 0.01 |
| HbA1C,% (mmol/mol) | 9.43 (80) ± 2.33 | 8.98 (71) ± 2.55 | 0.055 |
| Duration of diabetes | 14.27 ± 4.21 | 14.46 ± 5.01 | 0.66 |
a
Significant results. Numbers are given as n (%). 2hPG, 2-h plasma glucose; BMI, body mass index; DBP, diastolic blood pressure; FBG, fasting blood glucose; HbA1c, glycated hemoglobin; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; SBP, systolic blood pressure; SD, standard deviation; TC, total cholesterol; TG, triglyceride; WHR, waist-to-hip ratio.