Table 3 Negative effect of diabetes mellitus, smoking, and obesity on fusion status of Grafton® and DBX® DBMs/local autograft composites in instrumented posterolateral fusion
|  | Fusion Status (N = 54; 27 Grafton® side + 27 DBX® side) | P-value | |
|---|---|---|---|
| Â | Fused | Not Fused | |
Diabetes mellitus |  |  | P < 0.01 |
 No (n = 36) | 75.0% (27/36) | 25.0% (9/36) |  |
 Yes (n = 18) | 55.6% (10/18) | 44.4% (8/18) |  |
Smoking |  |  | P < 0.05 |
 No (n = 42) | 71.4% (30/42) | 28.6% (12/42) |  |
 Yes (n = 12) | 58.3% (7/12) | 41.7% (5/12) |  |
Obesitya |  |  | P < 0.01 |
 BMI (< 25) (n = 24) | 87.5% (21/24) | 12.5% (3/24) |  |
 BMI (≥25) (n = 30) | 46.7% (16/30) | 53.3% (14/30) |  |