Table 5 Results of multivariate analysis (negative binomial regression) of number of extraced teeth during APT + SPT.

From: Evaluation of periodontitis-related tooth loss according to the new 2018 classification of periodontitis

Independent variable

IRR (95%CI)

p-value

Sex

Female

Reference

 

Male

1.10 (0.27–1.46)

0.40

Age

1.51 (0.02–2.04)

0.57

Number of teeth at T0

0.69 (0.01–1.18)

0.19

Stage

I, II, & III

Reference

 

IV

1.38 (1.03–1.78

 < 0.01

Grade

A & B

Reference

 

C

2.57 (2.05–3.16)

 < 0.01

Extent

Localized

Reference

 

Generalized

1.26 (1.03–1.47)

 < 0.01

  1. Multivariate analysis (negative binomial regression) of the number of extracted teeth due to periodontitis per patient during APT + SPT; analysis was corrected for the period of follow-up.
  2. APT active periodontal therapy; SPT supportive periodontal therapy; IRR incidence rate ratio; CI confidence interval; T0 start of APT.
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