Schizophrenia is associated with excess multiple physical-health comorbidities but low levels of recorded cardiovascular disease in primary care: cross-sectional study

Daniel J Smith, Julie Langan, Gary McLean, Bruce Guthrie, Stewart W Mercer

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    129 Citations (Scopus)

    Abstract

    OBJECTIVE: To assess the nature and extent of physical-health comorbidities in people with schizophrenia and related psychoses compared with controls. DESIGN: Cross-sectional study. SETTING: 314 primary care practices in Scotland. PARTICIPANTS: 9677 people with a primary care record of schizophrenia or a related psychosis and 1 414 701 controls. Main outcome measures Primary care records of 32 common chronic physical-health conditions and combinations of one, two and three or more physical-health comorbidities adjusted for age, gender and deprivation status. RESULTS: Compared with controls, people with schizophrenia were significantly more likely to have one physical-health comorbidity (OR 1.21, 95% CI 1.16 to 1.27), two physical-health comorbidities (OR 1.37, 95% CI 1.29 to 1.44) and three or more physical-health comorbidities (OR 1.19, 95% CI 1.12 to 1.27). Rates were highest for viral hepatitis (OR 3.98, 95% CI 2.81 to 5.64), constipation (OR 3.24, 95% CI 3.00 to 4.49) and Parkinson's disease (OR 3.07, 95% CI 2.42 to 3.88) but people with schizophrenia had lower recorded rates of cardiovascular disease, including atrial fibrillation (OR 0.62, 95% CI 0.51 to 0.73), hypertension (OR 0.71, 95% CI 0.67 to 0.76), coronary heart disease (OR 0.75, 95% CI 0.61 to 0.71) and peripheral vascular disease (OR 0.83, 95% CI 0.71 to 0.97). CONCLUSIONS: People with schizophrenia have a wide range of comorbid and multiple physical-health conditions but are less likely than people without schizophrenia to have a primary care record of cardiovascular disease. This suggests a systematic under-recognition and undertreatment of cardiovascular disease in people with schizophrenia, which might contribute to substantial premature mortality observed within this patient group.
    Original languageEnglish
    Article numbere002808
    JournalBMJ Open
    Volume3
    Issue number4
    DOIs
    Publication statusPublished - 17 Apr 2013

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