Table 2 Demographic summary of people at baseline in the IPD dataset used for the prediction modelling – numbers are median (interquartile range) [range] unless otherwise stated.

From: Clinical prediction model for transition to psychosis in individuals meeting At Risk Mental State criteria

Variable

Did not transition

Transitioned

Total

(n = 2550)

(n = 359)

(n = 2909)

Gender, n (%)

Male

1385 (55)

204 (57)

1589 (55)

Female

1155 (45)

155 (43)

1310 (45)

Missing

10 (0)

0 (0)

10 (0)

Trait Vulnerability, n (%)

No

2210 (87)

307 (86)

2517 (87)

Yes

340 (13)

52 (14)

392 (13)

Age (years)

19 (17, 23)

20 (17, 24)

20 (17, 23)

 

[12–51]

[12–39]

[12–51]

   

26

Combined Score: Disorders of thought content

4 (3, 5)

4 (3, 5)

4 (3, 5)

 

[0 to 6]

[0–6]

[0–6]

   

38

Combined Score: Perceptual abnormalities

3 (2, 4)

4 (2, 4)

3 (2, 4)

 

[0–6]

[0–6]

[0–6]

   

38

Combined Score: Disorganised speech

2 (0, 3)

2 (0, 4)

2 (0, 3)

 

[0–6]

[0–6]

[0–6]

   

40

Global Functioning Scale, mean (standard deviation) [range]

53 (13)

47 (14)

51 (13)

 

[1–96]

[18–91]

[1–96]

   

586

Treated. n (%)

No

147 (6)

13 (4)

160 (6)

Yes

589 (23)

76 (21)

665 (22)

Not known

1814 (71)

270 (75)

2084 (72)

Negative symptom scores

PANSS (total)

7·0 (3·0, 12·0)

7·0 (3·0, 12·0)

7·0 (3·0, 12·0)

 

[1.0, 36.0]

[1.0, 36.0]

[1.0, 36.0]

   

2364

SANS (total)

3.0 (0.75, 7.0)

4·0 (1.0, 8.0)

3.0 (1.0, 7.00)

 

[0.0, 17.0]

[0.0, 16.0]

[0.0, 17.0]

   

2556

SIPS (total), mean (standard deviation)

12.8 (6.1)

12.8 (6.1)

12.8 (6.1)

 

[0.0, 29.0]

[0.0, 29.0]

[0.0, 29.0]

   

2579

  1. Missing values are in italics.