Table 1 Profile of sample including demographic information, psychotic experiences, Youth Self Report domains and potential confounders (n = 86)

Age at Baseline (n = 76)

11.6

.58

11.5

.60

0.48

.630

n

%

n

%

χ²

P value

Female

39

54.2%

7

50.0%

.082

.775

Psychotic Experiences Consensus at Baseline (n = 86)

4.19

.041*

 None/Weak

59

81.9%

8

57.1%

 Definite

13

18.1%

6

42.9%

 Talk to parents about problems (n = 77)

49

74.2%

9

81.8%

0.29

.589

Psychotic Experiences Consensus at Follow-up (n = 86)

10.0

.002**

 None/Weak

65

90.3%

8

57.1%

 Definite

7

9.72%

6

42.9%

Age at Follow-up (n = 86)

15.8

1.42

15.4

0.94

0.95

.344

Current functioning (CGAS) (n = 85)

83.4

10.8

81.1

11.7

.71

.475

Most severe past (CGAS) (n = 85)

72.1

15.1

69.4

13.2

.61

.546

Wechsler Memory Scale

50.6

10.7

46.8

3.99

1.32

.189

YSR total score

16.7

11.8

27.7

19.6

2.10

.041*

 Withdrawn

2.62

2.09

4.92

3.42

3.15

.002**

 Somatic Complaints

2.72

2.71

5.56

5.05

2.56

.013*

 Anxious/Depressed

3.88

3.46

8

6.87

3.19

.002**

 Social problems

2.95

2.88

5.15

4.14

2.33

.022*

 Thought problems (includes hallucination/delusion items)

2.50

2.41

4.91

3.27

2.91

.005**

 Attention problems

3.41

2.52

5.92

3.29

3.02

.003**

 Rule breaking

3.40

2.91

4.33

3.45

.992

.324

 Aggressive behaviour

4.41

4.44

7.50

5.47

2.13

.036*

 Socially desirable items

21.9

3.04

21.4

3.70

.423

.674

 Internalising

9.31

7.43

20.0

15.5

3.21

.002**

 Externalising

7.93

7.11

12.8

7.93

2.06

.044*