Objective: To investigate the prevalence, demographic characteristics and social life function of mental disorders in the rural left behind elderly aged 60 years and older in Gansu. Methods: Between November 2017 and June 2018, a multi-stage stratified cluster sampling method was used to randomly select the rural left behind elderly aged 60 years and older in Gansu, and totally 6 000 elderly were enrolled. By using the extended general health questionnaire (GHQ-12) and the American Handbook for Diagnosis and Statistics of Mental Disorders (DSM-Ⅳ) Axis Ⅰ Disorders Formal Clinical Examination Patient Edition, all the included subjects were screened and diagnosed. Functional status was assessed by the Global Assessment Function scale (GAF). Statistical analysis of the prevalence of various mental illnesses, as well as the differences in the prevalence of different gender, marital status and age groups was performed. Results: Totally, 6 000 subjects completed the survey. The adjusted current prevalence of any mental disorder was 20.11% (95%CI 17.70%-22.85%). The six most prevalent specific disorders were major depressive disorder (9.20%), pain disorder (2.71%), mood disorder due to the body condition (2.08%), generalized anxiety disorder (1.99%), anxiety disorder not otherwise specified (1.15%) and dysthymic disorder (0.84%). The lifetime prevalence of mental disorders was 20.54% (95%CI 18.40%-23.39%). The overall current prevalence of mental disorders was higher in women (242.89‰) than in men (119.55‰), and the unmarried (248.37‰) was higher than those married (187.53‰). There was no significant difference in the prevalence of mental disorders among different age groups (P>0.05). The GAF score of mental disorders was 56±11, and 71.82% was moderate to severe functional impairment. Conclusions: The prevalence of mental disorders is high in rural left-behind population aged 60 years and over in Gansu Province. Major depression is a condition that deserves special attention.
目的： 调查甘肃省≥60岁农村留守人群精神疾病的患病率、人口统计学特征及社会生活功能。 方法： 2017年11月至2018年6月采用多阶段分层整群抽样方法抽取甘肃省≥60岁农村留守人员6 000人。用扩展的一般健康问卷（GHQ-12）进行筛查，以美国精神疾病诊断与统计手册（DSM-Ⅳ）轴Ⅰ疾病定式临床检查患者版进行调查，用DSM-Ⅳ对各类精神疾病进行诊断。采用大体功能评定量表（GAF）评价其功能状态。统计分析各类精神疾病患病率以及不同性别、婚姻状况、年龄段患病情况的差异。 结果： 共6 000人完成调查，精神疾病的现患率为20.11%（95%CI 17.70%~22.85%），在各种精神疾病中排在前6位者依次为重性抑郁（9.20%）、疼痛性障碍（2.71%）、缘于躯体状况的心境障碍（2.08%）、广泛性焦虑（2.00%）、未特定抑郁（1.15%）、心境恶劣（0.84%）；终生患病率为20.54%（95%CI 18.04%~23.39%）。女性患病率（242.89‰）显著高于男性（119.55‰）（χ(2)=122.05，P<0.01），不在婚者（248.37‰）显著高于在婚者（187.53‰）（χ(2)=90.00，P<0.01）；各年龄段间患病率差异无统计学意义（P>0.05）。各类精神疾病GAF评分（56±11）分，71.82%为中、重度功能损害。 结论： 甘肃省≥60岁农村留守人群精神疾病患病率较高，重性抑郁是特别需要关注的问题。.
Keywords: Epidemiologic survey; Mental disorders; Prevalence; Rural left behind elderly.