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. 2021 Mar 25;23(3):289–297. doi: 10.1111/cid.12994

TABLE 3.

Hazard ratios obtained from multivariate Cox PH regression model

Variable Hazard ratio 95% CI p value
Multiple vs. single 5.19 (1.89, 14.34) <0.01
Heavy smoking 1.81 (1.03, 3.17) 0.039
Diabetes mellitus 2.25 (1.04, 4.89) 0.040
Implant length: 6 mm 3.46 (2.22, 5.38) <0.01
Immediate implantation 2.44 (1.53, 3.90) <0.01a
GBR surgery 1.98 (1.40, 2.79) <0.01
a

Violation of the PH assumption exist.