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Table 3 Poisson regression with DUP as an outcome: univariate and multivariate analyses

From: Which pathways to psychiatric care lead to earlier treatment and a shorter duration of first-episode psychosis?

  

Univariate

 

Multivariate

 

Total sample

 

Rate ratio (95% CI)

P

Rate ratio (95% CI)

P

Age

Per year

1.02 (1–1.03)

0.09

1.01 (1.00–1.04)

0.14

Gender

Male

1

 

1

 
 

Female

0.9 0.62–1.30)

0.58

1.07 (0.77–1.48)

0.69

Single

No

1

 

1

 
 

Yes

1.39 (0.99–1.97)

0.06

1.46 (0.99–2.14)

0.06

Qualifications

None

1

 

1

 
 

Yes

0.79 (0.56–1.13)

0.20

0.99 (0.72–1.37)

0.95

Social class

I,II,III

1

 

1

 
 

IV,V

1.15 (0.77–1.71)

0.51

1.07 (0.71–1.60)

0.75

 

Unclassified, not working

1.16 (0.69–1.96)

0.57

1.31 (0.75–2.32)

0.34

Number of close persons

Per person

0.9 (0.84–0.96)

0.002

0.93 (0.89–0.99)

0.03

UK born

No

1

 

1

 
 

Yes

0.93 (0.65–1.32)

0.68

0.88 (0.60–1.29)

0.52

Ethnicity

White

1

 

1

 
 

Black

0.57 (0.38–0.84)

0.005

0.52 (0.34–0.82)

0.004

 

Indian sub-continent

0.92 (0.58–1.45)

0.72

0.88 (0.54–1.44)

0.61

 

Other

0.96 (0.47–1.96)

0.91

0.75 (0.39–1.47)

0.41

Schizophrenia

 

1

 

1

 

Delusional disorder

 

1.64 (0.86–3.14)

0.13

1.59 (0.90–2.82)

0.11

Brief psychotic disorder

 

0.66 (0.27–1.64)

0.37

0.74 (0.31–1.78)

0.50

Schizoaffective disorder

0.6 (0.38–0.95)

0.03

0.75 (0.44–1.26)

0.28

Non-affective psychosis: NOS

0.67 (0.35–1.28)

0.22

0.6 (0.26–1.38)

0.23

Psychotic depression

0.84 (0.49–1.43)

0.52

0.91 (0.53–1.55)

0.72

Psychotic mania

0.19 (0.13–0.27)

<0.001

0.22 (0.14–0.35)

<0.001

Affective psychosis-NOS

0.16 (0.09–0.31)

<0.001

0.18 (0.06–0.54)

0.002

Detained within a

No

1

 

1

 

week of contact

Yes

0.68 (0.47–0.98)

0.04

0.66 (0.45–0.96)

0.03

1st Contact on Pathway

Community health & social care

1.08 (0.65–1.79)

0.77

0.96 (0.54–1.69)

0.88

Criminal justice system

1.28 (0.81–2.00)

0.30

1.61 (1.00–2.58)

0.05

 

Hospital medicine

2.44 (0.44–13.42)

0.30

2.32 (0.88–6.16)

0.09

 

Psychiatric services

0.85 (0.27–2.65)

0.78

0.81 (0.29–2.27)

0.68

 

Accident & Emergency

0.84 (0.52–1.33)

0.45

0.84 (0.52–1.34)

0.46

 

Emergency clinics

0.42 (0.24–0.72)

0.002

0.40 (0.23–0.71)

0.002

  1. Note. R2 = 22.3% of variance on 427 observations. Data point for detained within a week of contact complete for only 474. Data point for close persons has only 433 observations. All Poisson estimates used Poisson regression commands in STATA with the vce (robust) command to ensure robust confidence intervals and guarding against over-dispersion and violations of model assumption.
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BMC Psychiatry

ISSN: 1471-244X

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