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Comparison of general data of two groups of patients.
| Group | PTED group (n=50) | MED group (n=58) | χ2/t | P-value |
|---|---|---|---|---|
| Sex | 0.621 | 0.431 | ||
| Female | 17 (34.00) | 24 (41.38) | ||
| Male | 33 (66.00) | 34 (58.62) | ||
| Average age (years) | 40.98±7.98 | 42.38±8.11 | 0.902 | 0.370 |
| Average body weight (kg) | 63.21±6.33 | 61.66±7.18 | 1.181 | 0.240 |
| Occupation | 0.225 | 0.635 | ||
| Busy | 29 (58.00) | 31 (53.45) | ||
| Relaxed | 21 (42.00) | 27 (46.55) | ||
| Segments | 1.811 | 0.404 | ||
| L3-4 | 3 (6.00) | 5 (8.62) | ||
| L4-5 | 28 (56.00) | 25 (43.10) | ||
| L5~S1 | 19 (38.00) | 28 (48.28) |
