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Table 6 Cox regression analyses for cumulative incidence of peri-implantitis

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

  Hazard ratio 95% confidence interval p value
Gender (male) 2.38 1.138~5.362 0.0208
Implant type (TPS) 4.35 1.897~9.941 0.0006
Implant position (maxilla to mandibular/anterior) 6.08 1.384~24.436 0.0188
Implant position (maxilla to mandibular/posterior) 3.45 0.903~11.111 0.0679
Implant position (mandibular/anterior to mandibular/posterior) 0.57 0.207~1.442 0.2370
Additional soft tissue management (yes) 1.18 0.535~2.714 0.6826
Width of keratinized mucosa (> 2 mm) 0.24 0.094~0.559 0.0006