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Comparison of basic data of patients.
| Basic data | Control group (n = 47) | Observation group (n = 47) | t or χ2 | P |
|---|---|---|---|---|
| Age (years old) | 43.9 ± 4.5 | 44.8 ± 5.5 | -0.339 | 0.243 |
| Gender (n (%)) | 0.417 | 0.305 | ||
| Male | 18 (19.1) | 20 (21.3) | ||
| Female | 29 (30.9) | 27 (28.7) | ||
| Cultural level (n (%)) | 0.126 | 0.414 | ||
| Primary school and below | 8 (8.5) | 10 (21.3) | ||
| Middle school | 23 (24.5) | 26 (27.7) | ||
| College and above | 16 (17.0) | 11 (11.7) | ||
| BMI (kg/m2) | 21.8 ± 2.1 | 22.2 ± 3.7 | 0.191 | 0.155 |
