Sigström Robert, Skoog Ingmar, Karlsson Björn, Nilsson Johan, Östling Svante
Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden.
Aging Research Center, Karolinska Institutet, Stockholm, Sweden.
Depress Anxiety. 2016 Apr;33(4):339-46. doi: 10.1002/da.22459. Epub 2015 Dec 8.
Little is known about the long-term course of specific phobia (SP) in the general population. We examined the prevalence and course of SP and subthreshold fears in an older population followed over 9 years.
A psychiatric examination was performed in a population-based sample of 558 70-year-olds, among whom 303 dementia-free survivors were followed up at both ages 75 and 79. Fears were rated with respect to level of anxiety and social or other consequences. DSM-IV SP was diagnosed when fears were associated with prominent anxiety and had social or other consequences. All other fears were labeled subthreshold fears.
The prevalence of SP declined from 9.9% at age 70 to 4.0% at age 79. The reason was that the prevalence of fears associated with prominent anxiety (mandatory in the diagnosis) decreased whereas the prevalence of fears that gave social or other consequences remained stable. A total of 14.5% of the population had SP at least once during the study. Among these, 11.4% had SP and 65.9% had specific fear at all three examinations.
The prevalence of fears associated with prominent anxiety decreased with age, resulting in an overall decline in the prevalence of SP. SP seems to be a fluctuating disorder, and in most cases an exacerbation of chronic subthreshold fears.
关于普通人群中特定恐惧症(SP)的长期病程知之甚少。我们在一个随访9年的老年人群中研究了SP及阈下恐惧的患病率和病程。
对558名70岁的基于人群的样本进行了精神科检查,其中303名无痴呆幸存者在75岁和79岁时均接受了随访。根据焦虑水平以及社交或其他后果对恐惧进行评分。当恐惧与明显焦虑相关且有社交或其他后果时,诊断为DSM-IV特定恐惧症。所有其他恐惧被标记为阈下恐惧。
特定恐惧症的患病率从70岁时的9.9%下降到79岁时的4.0%。原因是与明显焦虑相关的恐惧(诊断中的必备条件)患病率下降,而产生社交或其他后果的恐惧患病率保持稳定。在研究期间,共有14.5%的人群至少有一次特定恐惧症。其中,11.4%的人在所有三次检查中都有特定恐惧症,65.9%的人有特定恐惧。
与明显焦虑相关的恐惧患病率随年龄增长而下降,导致特定恐惧症的总体患病率下降。特定恐惧症似乎是一种波动的疾病,在大多数情况下是慢性阈下恐惧的加重。