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Table 2 Odds ratios (OR) with 95% confidence intervals (95% CI) of the statistically significant explanatory factors after backward elimination for the prevalence of periodontal micro-organisms analyzed by stepwise logistic regression.

From: Periodontal disease-associated micro-organisms in peri-menopausal and post-menopausal women using or not using hormone replacement therapy. A two-year follow-up study

Bacterium# Explanatory factor§ OR 95% CI Significance
Baseline     
P.g. Periodontal pockets 3.73 1.74-8.00 p = 0.001
P.i. Periodontal pockets 2.77 1.57-4.91 p < 0.001
P.n. Poor oral health 0.40 0.19-0.82 p = 0.012
T.f. Periodontal pockets 4.44 2.44-8.07 p < 0.001
T.d. Periodontal pockets 2.26 1.28-3.97 p = 0.005
2 year-Follow-up     
A.a. HRT§§ 0.21 0.48-0.93 p = 0.040
  Cardiovascular    
  medication§§§ 5.48 1.04-28.77 p = 0.044
P.g. Periodontal pockets 3.04 1.11-8.34 p = 0.031
P.i. Periodontal pockets 1.98 1.09-3.59 p = 0.025
P.n. Number of teeth 1.08 1.00-1.16 p = 0.045
T.d. Periodontal pockets 2.95 1.06-8.19 p = 0.038
  1. #A.a. = Aggregatibacter actinomycetemcomitans; P.g. = Porphyromonas gingivalis;
  2. P.i. = Prevotella intermedia; P.n. = Prevotella nigrescens; T.f. = Tannerella forsythia; T.d. = Treponema denticola.
  3. §Periodontal pockets: >4 mm deep pockets; Poor oral health = self-assessed poor oral health;
  4. §§HRT = hormone replacement therapy
  5. §§§Includes diuretics, antihypertensive agents, nitrates, digitalis and antiarrhythmic agents