Table 1.
Basic information of patients.
| Basic information | Classification | Group 1 | Group 2 | Group 3 | χ 2 value | P value |
|---|---|---|---|---|---|---|
| Gender | Male | 76 (33.33%) | 49 (21.49%) | 23 (10.09%) | 0.293 | 0.864 |
| Female | 42 (18.42%) | 24 (10.53%) | 14 (6.14%) | |||
|
| ||||||
| Age | (18∼40) | 38 (16.67%) | 6 (2.63%) | 0 (0%) | 40.769 | <0.001 |
| (40∼60) | 57 (25%) | 42 (18.42%) | 14 (6.14%) | |||
| ≥60 | 23 (10.09%) | 25 (10.96%) | 23 (10.09%) | |||
|
| ||||||
| BMI | 18.5∼23.9 | 26 (16.99%) | 15 (9.8%) | 3 (1.96%) | 4.174 | 0.383 |
| 24.0∼27.9 | 36 (23.53%) | 19 (12.42%) | 13 (8.5%) | |||
| ≥28 | 19 (12.42%) | 15 (9.8%) | 7 (4.58%) | |||
BMI: body mass index. The classification criteria come from the Guidelines for the Prevention and Control of Overweight and Obesity in Chinese Adults [19]: BMI = 24 is the limit of overweight for Chinese adults, and BMI ≥ 28 is the limit of obesity. BMI records of 75 patients were missing in this study.