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2024 ; 14
(7
): e084613
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
A real-world data analysis of electronic health records to investigate the
associations of predominant negative symptoms with healthcare resource
utilisation, costs and treatment patterns among patients with schizophrenia
#MMPMID39089713
Patel R
; Dembek C
; Won Y
; Kadakia A
; Huang X
; Zeni C
; Pikalov A
BMJ Open
2024[Jul]; 14
(7
): e084613
PMID39089713
show ga
OBJECTIVES: Negative symptoms in schizophrenia are associated with significant
illness burden. We sought to investigate clinical outcomes for patients with
schizophrenia who present with predominant negative symptoms (PNS) vs without
PNS. DESIGN: Retrospective analysis of electronic health record (EHR) data.
SETTING: 25 US providers of mental healthcare. PARTICIPANTS: 4444 adults with
schizophrenia receiving care between 1999 and 2020. EXPOSURE: PNS defined as ?3
negative symptoms and ?3 positive symptoms recorded in EHR data at the time of
the first recorded schizophrenia diagnosis (index date). Symptom data were
ascertained using natural language processing applied to semistructured free text
records documenting the mental state examination. A matched sample (1:1) of
patients without PNS was used to compare outcomes. Follow-up data were obtained
up to 12 months following the index date. PRIMARY OUTCOME MEASURE: Mean number of
psychiatric hospital admissions. SECONDARY OUTCOME MEASURES: Mean number of
outpatient visits, estimated treatment costs, Clinical Global Impression -
Severity score and antipsychotic treatments (12 months before and after index
date). RESULTS: 360 (8%) patients had PNS and 4084 (92%) did not have PNS.
Patients with PNS were younger (36.4 vs 39.7 years, p<0.001) with a greater
prevalence of psychiatric comorbidities (schizoaffective disorders: 25.0 vs
18.4%, p=0.003; major depressive disorder: 17.8 vs 9.8%, p<0.001). During
follow-up, patients with PNS had fewer days with an antipsychotic prescription
(mean=111.8 vs 140.9?days, p<0.001). Compared with matched patients without PNS,
patients with PNS were more likely to have a psychiatric inpatient
hospitalisation (76.1% vs 59.7%, p<0.001) and had greater estimated inpatient
costs ($16?893 vs $13?732, p=0.04). CONCLUSIONS: Patients with PNS were younger
and presented with greater illness severity and more psychiatric comorbidities
compared with patients without PNS. Our findings highlight an unmet need for
novel therapeutic approaches to address negative symptoms to improve clinical
outcomes.