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What proportion of patients with psychosis is willing to take part in research? A mental health electronic case register analysis.

What proportion of patients with psychosis is willing to take part in research? A mental health electronic case register analysis.
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Patel R, Oduola S, Callard F, Wykes T, Broadbent M, Stewart R, Craig TK, McGuire P,


Patel R, Oduola S, Callard F, Wykes T, Broadbent M, Stewart R, Craig TK, McGuire P, (click to view)

Patel R, Oduola S, Callard F, Wykes T, Broadbent M, Stewart R, Craig TK, McGuire P,

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BMJ open 2017 03 097(3) e013113 doi 10.1136/bmjopen-2016-013113
Abstract
OBJECTIVE
The proportion of people with mental health disorders who participate in clinical research studies is much smaller than for those with physical health disorders. It is sometimes assumed that this reflects an unwillingness to volunteer for mental health research studies. We examined this issue in a large sample of patients with psychosis.

DESIGN
Cross-sectional study.

SETTING
Anonymised electronic mental health record data from the South London and Maudsley NHS Foundation Trust (SLaM).

PARTICIPANTS
5787 adults diagnosed with a psychotic disorder.

EXPOSURE
Whether approached prior to 1 September 2014 for consent to be approached about research participation.

MAIN OUTCOME MEASURES
Number of days spent in a psychiatric hospital, whether admitted to hospital compulsorily, and total score on the Health of the Nation Outcome Scale (HoNOS) between 1 September 2014 and 28 February 2015 with patient factors (age, gender, ethnicity, marital status and diagnosis) and treating clinical service as covariates.

RESULTS
1187 patients (20.5% of the total sample) had been approached about research participation. Of those who were approached, 773 (65.1%) agreed to be contacted in future by researchers. Patients who had been approached had 2.3 fewer inpatient days (95% CI -4.4 to -0.3, p=0.03), were less likely to have had a compulsory admission (OR 0.65, 95% CI 0.50 to 0.84, p=0.001) and had a better HoNOS score (β coefficient -0.9, 95% CI -1.5 to -0.4, p=0.001) than those who had not. Among patients who were approached, there was no significant difference in clinical outcomes between those agreed to research contact and those who did not.

CONCLUSIONS
About two-thirds of patients with psychotic disorders were willing to be contacted about participation in research. The patients who were approached had better clinical outcomes than those who were not, suggesting that clinicians were more likely to approach patients who were less unwell.

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