Table 1.
Comparison of the general data between the two groups
| Control group (n=60) | Observation group (n=60) | χ2/T | P | ||
|---|---|---|---|---|---|
| Gender | male | 37 (61.67) | 39 (65.00) | 0.144 | 0.705 |
| female | 23 (38.33) | 21 (35.00) | |||
| Mean age (x̅ ± s, year) | 68.28±4.36 | 67.94±4.15 | 0.438 | 0.663 | |
| Mean duration of disease (x̅ ± s, year) | 7.56±3.68 | 7.45±3.52 | 0.167 | 0.867 | |
| Category of chronic diseases (%) | Hypertension | 24 (40.00) | 26 (43.33) | 0.137 | 0.711 |
| Diabetes | 19 (31.67) | 18 (30.00) | 0.039 | 0.843 | |
| Coronary heart disease | 14 (23.33) | 11 (18.33) | 0.455 | 0.500 | |
| Cardiac insufficiency | 11 (18.33) | 13 (21.67) | 0.208 | 0.648 | |
| Rheumatoid arthritis | 9 (15.00) | 8 (13.33) | 0.069 | 0.794 | |
| Lumbar spine lesions | 2 (3.33) | 3 (5.00) | 0.000 | 1.000 | |
| Complications of chronic diseases (%) | Single chronic disease | 41 (68.33) | 43 (71.67) | 0.159 | 0.690 |
| Associated with multiple chronic diseases | 19 (31.67) | 17 (28.33) | |||
Note: χ2 test was used to compare the gender, category of chronic diseases and the combination of chronic diseases between the two groups, and t-test was used to compare the age and course of disease between the two groups.