Table 2 Demographic characteristics of individuals using self-treatment, by year (%)

Gender:

 Male

19.8

28.1

35.5

26.9

2.2

 Female

20.3

28.6

35.9

27.2

 χ ²

1.1

1.0

0.4

0.6

Age:

 15–24 years

15.6

22.1

28.0

20.4

910.0**

 25-44 years old

19.9

28.0

33.6

27.0

363.8**

 45-64 years old

23.6

31.7

37.9

29.6

162.6**

 ≥65 years old

26.0

33.1

40.2

26.7

457.5**

 χ ²

263.2**

273.5**

211.6**

145.1**

Marriage:

 Unmarried

21.6

30.4

32.8

28.1

156.0**

 Married

21.8

30.3

37.1

27.9

21.9**

 Divorced

26.9

32.6

41.1

28.1

5.4

 Widowed

24.7

31.5

38.3

28.7

87.0**

 χ ²

12.3**

2.1

15.6**

1.3

Education:

 Illiterate or semi-illiterate

19.2

25.6

32.7

26.7

64.0**

 Primary/junior school

21.7

29.5

37.0

28.6

127.5**

 High or technical school

30.1

40.7

44.8

28.5

89.8**

 College or university and above

31.3

44.5

49.1

27.8

 χ ²

175.1**

359.9**

188.4**

9.5*

Profession:

 Unemployed

17.4

32.6

43.0

29.9

793.7**

 Worker

28.8

42.2

44.3

30.0

2400.0**

 Farmer

15.2

21.5

31.3

26.3

1000.0**

 Retired

34.6

38.8

49.6

26.0

1500.0**

 χ ²

796.0**

1000.0**

572.5**

49.6**

Family members:

 1–2 persons

24.1

33.2

40.8

28.5

207.1**

 3-4 persons

21.7

30.9

38.0

27.7

312.7**

 ≥5 persons

17.5

23.4

31.7

24.5

581.9**

 χ ²

86.8**

211.5**

120.4**

31.5**