Table 4 Unadjusted and adjusted associations of OIDP with socio-demographics, behaviours and number of types of OML in skin diseased patients (n = 544). Percentage (n), odds ratio (OR) and 95 % Confidence Interval (CI)

Gender

Male

30.7 (81)

1

1

Female

40.5 (109)*

1.5 (1.0-2.2)

1.4 (0.9-2.1)

Age

18-32 yr

34.7 (95)

1

1

33-85 yr

36.4 (91)

1.0 (0.7-1.5)

0.9 (0.6-1.5)

Education

Lower

31.2 (82)

1

1

Higher

39.3 (103)*

1.4 (0.9-2.0)

1.4 (0.9-2.3)

Perceived oral health status

Good

24.5 (82)

1

1

Bad

54.8 (108)**

3.7 (2.5-5.4)

2.9 (1.9-4.5)**

Perceived health status

Good

30.5 (110)

1

1

Bad

46.7 (79) **

2.0 (1.3-2.9)

1.5 (0.99-2.4)¶

Dental attendance

Never attended dental clinic

27.4 (90)

1

1

Attended dental clinic

48.8 (98)**

2.5 (1.7-3.6)

2.3 (1.5-3.5)**

Medical conditions

None

30.1 (87)

1

1

At least one

42.2 (103)*

1.6 (1.1-2.4)

1.3 (0.8-2.1)

Number of types of OML ♯

None

30.5 (69)

1

One

36.7 (72)

1.2 (0.7-1.9)

>one

44.1 (49)*

1.8(1.1-3.2)*