Main Article Content
Objective To review the parameters for calculating the burden of disease in anxiety disorders including panic disorder (PD) and generalized anxiety disorder (GAD) and in post-traumatic stress disorder (PTSD).
Material and method The literature searching was done using PubMed database to find the related literatures published after the 1990s. The topics and abstracts were screened, and the full text searching and synthesizing was done for the related literatures.
Results Lifetime prevalence of PD, GAD and PTSD was between 0.2%-4.7%, 0.1%-7.8% and 0.0%–6.8%, respectively. The highest proportion of serious severity was found in GAD (35.1%). The age of onset of PD, GAD and PTSD was between 30.8-32.3 years, 28.9-37.3 years and 18-55 years, respectively. The duration of illness of PD and GAD in Thailand was 3.6 months, while the duration of illness in PTSD was 16 months. The illness episodes of PD and GAD was 4.1 and 3 times, respectively.
Conclusion The appropriate parameters for calculating the burden of anxiety disorders were prevalence, severity distribution, age of onset, disability duration until remission, and illness episodes. Further studies on remission rate, relative risk of mortality, and disability weights in Thai patients should
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