Table 2.
Relationships between bone surface and implant-to-bone surface area ratio and subsidence, including age as a covariate to control for the confounding variable
| Parameter | Subsidence Marginal mean (SE) | B | SE | 95% CI for B | t | p | |
|---|---|---|---|---|---|---|---|
| No | Yes | ||||||
| Bone Surfacea | 3.93 (0.065) | 4.53 (0.147) | 0.597 | 0.161 | (0.278-0.197) | 3.72 | 0.0004 |
| Implant-to-bone surface ratio areab | 0.412 (0.0066) | 0.361 (0.0149) | - 0.05 | 0.0164 | (-0.084 --0.019) | -3.12 | 0.0025 |
Key to abbreviations and symbols:
aR2 for the model 0.189;
bR2 for the model 0.15;
B linear regression coefficient estimate, SE Standard error of the estimate, CI Confidence interval, t t statistics for the linear regression, p two-tailed test probability for t-test statistic;
Underline marks significant associations for p < α = 0.05