Department of Social Work and Social Administration, The University of Hong Kong, Hong Kong.
J Affect Disord. 2011 Oct;133(3):584-90. doi: 10.1016/j.jad.2011.05.003. Epub 2011 Jun 1.
Suicidal ideation has been identified as both a common antecedent and a significant risk factor for suicide attempt and completed suicide. However, little is known about the incidence and persistence of suicidal ideation in the general population and the associated risk factors.
A 12-month follow-up survey investigated 997 of the respondents who participated in the baseline territory-wide survey of adult population in Hong Kong. A set of baseline psychological factors was considered as predictors of first onset and persistence of suicidal ideation.
Twelve-month incidence (1.9%) and persistence (6.2%) rates were estimated. Respondents with anxiety and lack of reasons for living were more likely to report a development of suicidal thoughts in the follow-up assessment, while respondents with higher level of average life distress and lower level of hope were at increased risk of continuing to have suicidal thoughts. Depression was found to partially mediate the effect of average life distress on persistent suicidality.
Retention rate of the follow-up sample was about 50% only. Assessments of suicidal ideation were based on retrospective reports.
Psychological factors differentially predict first onset and persistence of suicidal ideation. It is of clinical value that depression partially mediated the effect of life distress on persistence of suicidality.
自杀意念不仅是自杀未遂和自杀的常见前兆，也是其重要的危险因素。然而，对于一般人群中自杀意念的发生率和持续时间及其相关危险因素，我们知之甚少。
对参加香港全港成年人口基线调查的 997 名受访者进行了为期 12 个月的随访调查。将一组基线心理因素作为自杀意念首次出现和持续存在的预测因素进行了研究。
估计了 12 个月的发生率（1.9%）和持续率（6.2%）。在随访评估中，有焦虑和缺乏生活理由的受访者更有可能报告出现自杀想法，而生活困扰平均水平较高且希望水平较低的受访者出现持续自杀意念的风险增加。抑郁被发现部分中介了生活困扰对持续自杀意念的影响。
随访样本的保留率仅约为 50%。自杀意念的评估是基于回顾性报告。
心理因素可预测自杀意念的首次出现和持续存在。抑郁部分中介了生活困扰对持续自杀意念的影响，这具有临床价值。
