Skip to main content

Table 4 Associated factors with RA versus controls: bivariate and multivariate analyses considering periodontitis Level 1, Level 2 or Level 1 + 2

From: Association between severity of periodontitis and clinical activity in rheumatoid arthritis patients: a case–control study

Factor

Bivariate

Multivariate

Multivariate Level 1 + 2

OR

95% CI

p

Adjusted OR

95% CI

p

Adjusted OR

95% CI

p

Periodontitis (ref. to no)

 Level 1

12.22

(4.67–31.98)

< 0.001

14.78

(4.23–51.68)

< 0.001

   

 Level 2

46.86

(16.51–133)

< 0.001

81.01

(18.59–353.07)

< 0.001

   

 Level 1 + 2

14.75

(5.66–34.4)

< 0.001

   

20.57

(6.02–70.27)

< 0.001

Age

1.00

(0.98–1.01)

0.564

0.95

(0.92–0.98)

0.003

0.96

(0.93–0.99)

0.003

Gender (ref. to woman)

0.491

(0.30–0.79)

0.004

0.18

(0.07–0.44)

< 0.001

0.23

(0.10–0.54)

0.001

Socioeconomic status (ref. to poverty(Ext + Rel))

 High

0.20

(0.09–0.46)

< 0.001

0.18

(0.05–0.60)

0.006

0.16

(0.05–0.53)

0.003

 Medium

0.28

(0.15–0.52)

< 0.001

0.16

(0.05–0.47)

0.001

0.16

(0.05–0.46)

0.001

 Low

0.49

(0.28–0.86)

0.012

0.31

(0.13–0.75)

0.010

0.33

(0.14–0.77)

0.011

Annual dental prophylaxis (ref. to no)

0.56

(0.37–0.86)

0.008

0.52

(0.26–1.05)

0.070

0.49

(0.25–0.96)

0.039

Osteoporosis (ref. to no)

 Osteopenia

5.19

(2.72–9.88)

< 0.001

5.95

(2.29–15.42)

< 0.001

5.26

(2.18–12.65)

< 0.001

 Osteoporosis

5.46

(2.59–11.50)

< 0.001

8.00

(2.79–22.86)

< 0.001

6.91

(2.53–18.90)

< 0.001

Smoking (ref. to no)

 Smoker

3.06

(1.57–5.98)

0.001

1.08

(0.44–2.65)

0.858

1.62

(0.69–3.81)

0.269

 Former smoker

3.04

(1.66–5.56)

< 0.001

7.67

(2.73–21.57)

< 0.001

8.03

(2.93–22.02)

< 0.001

Stress (ref. to no)

0.89

(0.56–1.43)

0.641

1.14

(0.51–2.57)

0.747

1.16

(0.54–2.49)

0.707

BMI (continuous)

1.00

(0.95–1.04)

0.879

0.93

(0.86–1.01)

0.078

0.94

(0.87–1.01)

0.091

HTA (ref. to no)

1.57

(0.96–2.55)

0.071

3.26

(1.35–7.87)

0.008

2.85

(1.26–6.49)

0.012

MI (ref. to no)

2.28

(0.59–8.74)

0.230

2.63

(0.38–18.42)

0.330

2.84

(0.40–20.24)

0.298

  1. BMI body mass index, CI confidence interval, Ext + Rel extreme poverty plus relative poverty, HTA hypertension, MI myocardial infarction, OR odds ratio, RA rheumatoid arthritis, ref referred