Skip to main content

Table 3 The results obtained from logistic regression analysis for periodontal knowledge improvement

From: Assessment of periodontal knowledge following a mass media oral health promotion campaign: a population-based study

 

B

OR* (95% CI)

P

B

OR** (95% CI)

P

Gender

      

Male

 

1.00 (ref.)

  

1.00 (ref.)

 

Female

0.38

1.47 (1.04-2.08)

0.028

0.46

1.59 (1.05-2.43)

0.029

Age group

      

18-24

 

1.00 (ref.)

  

1.00 (ref.)

 

25-34

0.52

1.68 (1.06-2.65)

0.025

0.56

1.76 (1.00-3.08)

0.047

35-44

0.20

1.22 (0.74- 2.01)

0.424

0.36

1.44 (0.77-2.68)

0.248

> = 45

0.41

1.51 (0.88-2.58)

0.131

0.56

1.76 (0.89-3.47)

0.104

Education

      

Illiterate/Elementary

 

1.00 (ref.)

  

1.00 (ref.)

 

High school

0.22

1.25 (0.75-2.08)

0.388

0.85

2.34 (1.23-4.43)

0.009

University

0.34

1.41 (0.84-2.35)

0.189

1.20

3.33 (1.66-6.64)

0.001

Economic status

      

Low

 

1.00 (ref.)

  

1.00 (ref.)

 

Moderate

0.02

1.02 (0.64-1.62)

0.917

-0.41

0.95 (0.56-1.61)

0.877

High

-0.20

0.81 (0.51- 1.29)

0.396

-0.17

0.84 (0.49-1.44)

0.531

Time of watching TV

      

Rarely/Never

 

1.00 (ref.)

  

1.00 (ref.)

 

One hour or less per day

0.33

1.40 (0.90-2.16)

0.130

0.50

1.65 (0.97-2.81)

0.062

Two hours or more per day

0.32

1.38 (0.80-2.35)

0.237

0.32

1.38 (0.73-2.61)

0.313

Seeing the campaign

      

No

 

1.00 (ref.)

  

1.00 (ref.)

 

Yes

0.56

1.75 (1.20-2.56)

0.004

0.79

2.20 (1.37-3.54)

0.001

Knowledge score at baseline

-1.20

0.29 (0.22-0.40)

<0.001

-1.36

0.25 (0.17-0.36)

<0.001

  1. OR = odds ratio; CI = confidence intervals.
  2. *Unadjusted or derived from univariate logistic regression analysis.
  3. **Adjusted for gender, age, education, economic status, time of watching TV, seeing the campaign, and knowledge score at baseline.