Objective: To evaluate the long-term stability of International Classification of Diseases-10th revision bipolar affective disorder (BD) in multiple settings. Method: A total of 34 368 patients received psychiatric care in the catchment area of a Spanish hospital (1992-2004). The analyzed sample included patients aged ≥18 years who were assessed on ≥10 occasions and received a diagnosis of BD at least once (n = 1153; 71 543 assessments). Prospective and retrospective consistencies and the proportion of subjects who received a BD diagnosis in ≥75% of assessments were calculated. Factors related to diagnostic shift were analyzed with traditional statistical methods and Markov's models. Results: Thirty per cent of patients received a BD diagnosis in the first assessment and 38% in the last assessment. Prospective and retrospective consistencies were 49% and 38%. Twenty-three per cent of patients received a BD diagnosis during ≥75% of the assessments. Conclusion: There was a high prevalence of misdiagnosis and diagnostic shift from other psychiatric disorders to BD. Temporal consistency was lower than in other studies. © 2007 The Author.
CITATION STYLE
Baca-Garcia, E., Perez-Rodriguez, M. M., Basurte-Villamor, I., López-Castromán, J., Fernandez Del Moral, A. L., Jimenez-Arriero, M. A., … De Leon, J. (2007). Diagnostic stability and evolution of bipolar disorder in clinical practice: A prospective cohort study. Acta Psychiatrica Scandinavica, 115(6), 473–480. https://doi.org/10.1111/j.1600-0447.2006.00984.x
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