Objective
This study aimed to compare the long-term clinical and functional outcomes between psychiatric patients with and without catatonia over a 5-year follow-up and to explore the baseline predictors of poor outcomes.
Methods
The study sample comprised 51 with catatonic and 56 non-catatonic psychiatric patients. Catatonia was assessed using the Bush-Francis Catatonia Rating Scale (BFCRS). We also determined serum high-sensitivity C-reactive protein (hs-CRP) levels at the baseline, recorded clinical outcomes during follow-up, and assessed the Global Assessment of Functioning (GAF) scale at endpoint.
Results
Follow-up data were available for 31 catatonic patients and 34 non-catatonia patients. During follow-up, the catatonic group had a significantly higher percentage of treatment-resistant cases compared to the non-catatonic group (25.8 % vs. 5.9 %). Catatonic patients had significantly more readmissions than non-catatonic patients after excluding patients with poor adherence. At the endpoint, patients in the catatonic group scored significantly lower on the GAF than those in the non-catatonic group. In the catatonic group, patients with high inflammatory levels had a significantly higher number of readmissions than those with low inflammatory levels. In the whole sample, multiple linear regression analyses revealed that baseline BFCRS scores were a significant and independent predictor of poor functional outcome at follow-up (Beta = −0.369, P = 0.002, 95 % CI: −0.008 to −0.002).
Conclusion
Findings suggest that catatonia is linked to poorer clinical outcomes and a lower level of functioning. Specifically, baseline high inflammatory levels seem to contribute to a higher relapse rate in catatonic patients.
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