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Table 2 Results of bivariate analysis referring to bleeding on probing

From: Multilevel analysis of site, implant, and patient-level factors with peri-implant bleeding on probing: a cross sectional study

Variable Odds ratio 95% CI p value
Gingival biotype
Thick 1.000
Thin 1.467 1.040–2.069 0.029
Gingival recession    
Absent 1.000
Present 2.601 1.817–3.722 < 0.001
Bone loss
Absent 1.000
Present 1.778 1.108–2.852 0.017
Pocket depth 1.975 1.713–2.276 < 0.001
Duration of implant (months) 0.981 0.966–0.997 0.021
Position of implant
Upper right posterior 1.000
Lower left anterior 0.000 0.000 0.999
Lower left posterior 1.010 0.636–1.605 0.966
Lower right anterior 0.000 0.000 0.999
Lower right posterior 0.584 0.352–0.969 0.037
Upper left anterior 0.000 0.000 0.999
Upper left posterior 2.571 1.363–4.850 0.004
Upper right anterior 0.643 0.288–1.433 0.280
Gender
Female 1.000
Male 1.357 1.006–1.832 0.046
Ethnicity
Chinese 1.000
Indian 1.581 1.039–2.405 0.032
Malay 1.185 0.796–1.765 0.402
Systemic disease 1.327 0.982–1.793 0.065
Smokers 0.288 0.151–0.549 < 0.001
Age 1.027 1.012–1.042 < 0.001