Table 4.
Comparison of clinical data between low and high BMDT groups
| Data | Low BMDT group (n=74) | High BMDT group (n=36) | t/χ2 | P |
|---|---|---|---|---|
| Age (years, x̅±sd) | 68.58±5.65 | 62.97±4.99 | 5.073 | <0.001 |
| Sex (n (%)) | 0.016 | 0.900 | ||
| Male | 40 (54.05) | 19 (52.78) | ||
| Female | 34 (45.95) | 17 (47.22) | ||
| BMI (kg/m2, x̅±sd) | 21.46±2.15 | 21.74±2.91 | 0.510 | 0.612 |
| Fracture type (n (%)) | 2.129 | 0.345 | ||
| Intertrochanteric fracture | 33 (44.59) | 21 (58.33) | ||
| Femoral subtrochanteric fracture | 28 (37.84) | 9 (25.00) | ||
| Femoral neck fracture | 13 (17.57) | 6 (16.67) | ||
| Injured side (n (%)) | 0.064 | 0.800 | ||
| Left | 43 (58.11) | 20 (55.56) | ||
| Right | 31 (41.89) | 16 (44.44) | ||
| Combined underlying diseases (n (%)) | ||||
| Hypertension | 40 (54.05) | 18 (50.00) | 0.160 | 0.689 |
| Diabetes | 30 (40.54) | 11 (30.56) | 1.033 | 0.310 |
| CHD | 18 (24.32) | 7 (19.44) | 0.328 | 0.567 |
| VAS score at 72 hours post-surgery (score, x̅±sd) | 3.89±0.92 | 3.50±0.97 | 2.066 | 0.041 |
| Postoperative drainage volume (mL, x̅±sd) | 72.99±5.51 | 71.42±6.01 | 1.361 | 0.176 |
| Time to non-weight-bearing ambulation (day, x̅±sd) | 15.07±4.38 | 14.86±4.34 | 0.233 | 0.817 |
| Hospitalization time (day, x̅±sd) | 17.50±2.70 | 16.56±3.17 | 1.625 | 0.107 |
| Fracture healing time (week, x̅±sd) | 14.34±2.02 | 14.72±2.20 | 0.909 | 0.365 |
| Postoperative morbidity (n (%)) | 8 (10.81) | 2 (5.56) | 0.298 | 0.368 |
| Internal fixation techniques (n (%)) | 10.650 | 0.001 | ||
| DHS | 43 (58.11) | 9 (25.00) | ||
| PFNA | 31 (41.89) | 27 (75.00) |
BMI: body mass index; CHD: coronary heart disease; VAS: visual analog scale; DHS: dynamic hip screw; PFNA: proximal femoral nail anti-rotation; BMDT: bone mineral density T-value.