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Table 5 Cox regression analyses for implant survival

From: Retrospective cohort study of rough-surface titanium implants with at least 25 years’ function

  Hazard ratio 95% confidence interval p value
Gender (male) 1.99 0.538~8.201 0.3018
Implant type (TPS) 2.86 0.579~13.626 0.1897
Implant position (maxilla to mandibular/anterior) 40.09 4.062~994.751 0.0012
Implant position (maxilla to mandibular/posterior) 18.69 3.127~155.409 0.0013
Implant position (mandibular/anterior to mandibular/posterior) 0.47 0.022~3.912 0.5024
Additional soft tissue management (yes) 1.64 0.290~12.695 0.5808
Width of keratinized mucosa (> 2 mm) 0.78 0.166~3.294 0.7365