Table 2 Associations between demographic variables and the likelihood of being a social media user and (for social media users only) the likelihood of posting on social media about physical or mental health. Unless otherwise specified, Fisher’s exact test was used

Age^a

 (z, P)

1.657

.10

-1.578

.12

-0.091

.93

Gender

 Female

87.4

.34

37.5

.02

37.5

.07

 Male

82.0

19.5

24.1

Ethnicity

 White

85.9

.58

33.3

.008

35.7

.003

 Mixed ethnicity

85.7

33.3

41.7

 Asian, Black, Arabic, other ethnic group

79.5

6.9

6.9

Employment

 Unemployed

79.1

.04

79.09

.03

26.5

.47

 Employed

87.3

87.27

35.6

 Voluntary work, student, apprentice, household or caring duties

95.2

95.24

35.0

Education

 Primary or less

85.7

.99

0.0

.46

0.0

.29

 Secondary

85.0

30.5

34.3

 Tertiary/further

84.9

28.8

28.8

 Unsure/rather not say

Relationship

 Single

83.7

.34

21.3

.02

23.2

.02

 Relationship, cohabiting, married or civil partnership

87.7

41.1

44.6

 Divorced or separated

71.43

50.0

25.0

Diagnosis

 Schizophrenia/psychosis

84.0

.81

24.3

.01

27.2

.02

 Other diagnosis

87.2

48.5

48.5

Sample

 Online sample

92.7

.08

53.2

 < .001

66.0

 < .001

 Actissist2 sample

81.8

19.5

17.9