Variable | PTI n = 58 | No PTI n = 72 | t/χ2 | p-value |
---|---|---|---|---|
Age, mean ± SD (years) | 44.02 ± 7.18 | 42.45 ± 7.23 | 2.239 | 0.216 |
Male (%) | 49 (84.4) | 42 (58.3) | 12.216 | 0.048 |
Living environment (%) | ||||
 Urban | 47 (18.9) | 27 (37.5) | 5.517 | < 0.001 |
 Non-urban | 11 (81.0) | 45 (62.5) | ||
Education (%) | ||||
 Primary | 35 (60.3) | 27 (37.5) | 0.592 | 0.014 |
 Middle | 19 (32.7) | 22 (30.5) | ||
 University | 4 (6.8) | 23 (31.9) | ||
Occupation (%) | ||||
 Agricultural | 46 (79.3) | 45 (62.5) | 1.033 | 0.002 |
 Non-agricultural | 12 (20.6) | 27 (37.5) | ||
Smoking yes (%) | 43 (74.1) | 37 (51.3) | 2.061 | 0.039 |
Alcohol yes (%) | 26 (44.8) | 21 (29.1) | 17.437 | < 0.001 |
Hypertension yes (%) | 37 (63.7) | 23 (31.9) | 7.437 | < 0.001 |
Diabetes yes (%) | 35 (60.3) | 24 (33.3) | 7.594 | < 0.001 |
BMI > 25 (%) | 33 (56.8) | 13 (18.0) | 2.034 | 0.042 |
Duration of initial disease, mean ± SD(month) | 26.87 ± 8.02 | 23.61 ± 7.08 | 0.818 | 0.021 |
DS, mean ± SD (cm) | 6.21 ± 1.33 | 5.49 ± 1.30 | 0.940 | 0.462 |
Time to bone union, mean ± SD (month) | 8.21 ± 0.50 | 7.13 ± 0.58 | 2.752 | 0.034 |
EFT, mean ± SD (month) | 9.76 ± 0.34 | 8.23 ± 0.61 | 3.668 | 0.002 |
EFI, mean ± SD (months/cm) | 1.97 ± 0.31 | 1.52 ± 0.33 | 2.912 | 0.046 |
Type (%) | ||||
 Single-level | 31 (53.4%) | 47(65.2%) | 2.239 | 0.025 |
 Double-level | 27 (46.5%) | 25(34.7%) | ||
Location (%) | ||||
 Femur | 35 (60.3%) | 24 (33.3%) | 12.216 | < 0.001 |
 Tibia | 23 (39.6%) | 48 (66.6%) |