Research Article

Gender-Specific Associations of Serum Antibody to Porphyromonas gingivalis and Inflammatory Markers

Table 4

Prevalence ratios for periodontal disease in 2011.

Periodontally healthy in 2003Periodontal disease in 2003
MalesFemalesMalesFemales
PR (95% CI)PR (95% CI)PR (95% CI)PR (95% CI)

Model 1
Serum antibody titer against Pg 1.04 (0.94–1.14)1.11 (0.93–1.32)1.00 (0.97–1.03)1.16 (1.04–1.30
Overweight
 No1111
 Yes1.01 (0.58–1.75)0.93 (0.39–2.24)0.82 (0.66–1.01)0.72 (0.28–1.87)
hsCRP
 Normal1111
 Elevated hsCRP1.27 (0.70–2.29)6.10 (1.22–30.310.99 (0.82–1.19)3.00 (1.08–8.31
Leukocytes0.96 (0.86–1.05)0.90 (0.67–1.20)1.01 (0.98–1.04)0.97 (0.87–1.10)

Model 2
Serum antibody titer against Pg
 Low1111
 High1.05 (0.61–1.82)0.85 (0.25–2.94)0.96 (0.81–1.13)2.21 (1.04–4.73
Overweight
 No1111
 Yes1.03 (0.59–1.80)1.04 (0.31–3.45)0.81 (0.65–1.00)0.80 (0.23–2.74)
hsCRP
 Normal1111
 Elevated hsCRP1.25 (0.70–2.26)5.96 (1.31–27.131.00 (0.83–1.20)3.70 (1.07–12.80
Leukocytes0.96 (0.86–1.05)0.90 (0.66–1.22)1.01 (0.98–1.04)0.99 (0.88–1.12)

Dependent variable, 1: periodontal disease in 2011, 0: periodontally healthy in 2011.
Model 1: continuous variable of serum antibody titer against Pg was included.
Model 2: categorical variable of serum antibody titer against Pg was included.
< 0.05, < 0.01.
Adjusted by age, smoking, toothbrushing frequency, triglycerides, HDL, fasting glucose, and systolic blood pressure in 2003.
Continuous variable of leukocytes was used, because of small number of elevated leukocytes.
HsCRP, high-sensitive C-reactive protein; PR, prevalence ratio; CI, confidence interval.