Table 1.
Comparison of general information between the two groups (x̅ ± sd)
| Index | Observation group | Control group | t/χ2 | P |
|---|---|---|---|---|
| Age (years) | 68.2±12.3 | 69.0±11.8 | 0.278 | 0.782 |
| Gender (Male/Female) | 20/15 | 23/12 | 0.241 | 0.623 |
| Smoking history | 12 | 9 | 0.272 | 0.602 |
| Diabetes | 4 | 7 | 0.431 | 0.511 |
| Hypertension | 11 | 14 | 0.249 | 0.618 |
| Causes of disease | 0.089 | 0.765 | ||
| Osteoporosis | 27 | 29 | ||
| Injury from external force | 8 | 6 | ||
| Course of the disease (days) | 3.8±1.2 | 4.1±1.3 | 1.003 | 0.319 |
| BMI (kg.m-2) | 26.8±3.94 | 27.1±4.03 | 0.318 | 0.752 |
| Slipped parts | 0.589 | 0.963 | ||
| L4-5 | 18 | 20 | ||
| L5-S1 | 17 | 15 |
Note: BMI: body mass index.