Table 1 Demographic and oral health outcomes of the participants at baseline.

From: Theory-based educational intervention on oral hygiene behavior among university students: a randomized controlled trial

Characteristics

Control group n = 38

Intervention group n = 33

P value

Gender, n (%)

 Female

29 (76.3)

23 (69.7)

0.530a

 Male

9 (23.7)

10 (30.3)

 

Age (years), median (IQR)

18.5 (18, 20)

20 (20, 21)

0.007b

Family income, n (%)

 Low

6 (15.8)

5 (15.2)

0.972a

 Moderate

22 (57.9)

20 (60.6)

 

 High

10 (26.3)

8 (24.2)

 

Mother education, n (%)

 Low

5 (13.2)

5 (15.2)

0.641a

 Moderate

18 (47.4)

13 (39.4)

 

 High

15 (39.5)

15 (45.5)

 

Father education, n (%)

 Low

5 (13.2)

4 (12.1)

0.878a

 Moderate

18 (47.4)

14 (42.4)

 

 High

15 (38)

15 (45.5)

 

Oral hygiene instruction, n (%)

 No

12 (31.6)

12 (36.4)

0.671a

 Yes

26 (68.4)

21 (63.6)

 

Dental visit, n (%)

 No

33 (86.8)

31 (93.9)

0.438c

 Yes

5 (13.2)

2 (6.1)

 

Smoking status, n (%)

 Current smoker

4 (10.5)

3 (9.1)

1.000c

 Former smoker

3 (7.9)

2 (6.1)

 

 Non-smoker

31 (81.6)

28 (84.8)

 

DMF-T

3.61 ± 2.25

3.82 ± 2.24

0.692d

OHK

8.55 ± 1.33

8.27 ± 1.55

0.415d

OHBI

10.45 ± 2.42

9.76 ± 2.06

0.205d

Caries activity test, n (%)

 Low

12 (31.6)

10 (30.3)

0.048a

 Middle

22 (57.9)

12 (36.4)

 

 High

4 (10.5)

11 (33.3)

 

Salivary haemoglobin, n (%)

 Negative

8 (21.1)

11 (33.3)

0.517a

 Positive (2 μg/mL)

10 (26.3)

7 (21.2)

 

 Positive (5 μg/mL)

20 (52.6)

15 (45.5)

 

Total bacterial count (Log10 CFU/mL), median (IQR)

6.29 (6.00, 6.55)

6.20 (5.91, 6.59)

0.836b

  1. IQR Interquartile range, DMF-T decayed, missing, and filled teeth, OHK oral health knowledge, OHBI oral hygiene behavior index, CFU colony forming unit.
  2. aChi-square test.
  3. bMann–Whitney test.
  4. cFisher’s exact test.
  5. dIndependent t-test.