Guimarães Mark Drew Crosland, Oliveira Helian Nunes de, Campos Lorenza Nogueira, Santos Carolina Ali, Gomes Carlos Eduardo Resende, Oliveira Suely Broxado de, Freitas Maria Imaculada de Fátima, Acúrcio Francisco de Assis, Machado Carla Jorge
Department of Preventive and Social Medicine, Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
Braz J Psychiatry. 2008 Mar;30(1):55-9. doi: 10.1590/s1516-44462008005000005. Epub 2008 Jan 31.
To describe reliability/validity of a semi-structured questionnaire designed to assess risk behavior to sexually transmitted diseases among adults with chronic mental illness.
A cross-sectional pilot study was conducted in one psychiatric hospital and one mental health outpatient clinic. Clinical, behavioral and demographic data were collected from semi-structured interviews and medical charts. One-hundred and twenty patients were randomly selected from pre-defined lists in both centers while 89 (74%) were interviewed, indicating 26% nonparticipation rate. Protocol, participation rates, consent form and feasibility issues were assessed. The semi-structured interview was evaluated with regard to reliability (intra- and inter-rater) and construct validity by randomly repeating the interviews in a 1:1 ratio up to one-week interval. Reliability was estimated by percent agreement and Kappa statistics (95% confidence interval). Construct validity was assessed by Grade of Membership model.
Kappa statistics ranged from 0.40 to 1.00 for most variables. Grade of Membership analysis generated three profiles. Profile one was represented by mostly women with no condom use in stable relationships; profile two revealed mostly men in stable relationship but with multiple risk behaviors; while profile three indicated a higher proportion of licit or illicit substance use.
Reliability and construct validity assessment using Grade of Membership analysis indicated that the semi-structured interview was suitable for capturing risk behavior among patients with chronic mental illness.
描述一份半结构化问卷的信效度，该问卷旨在评估慢性精神疾病成年患者的性传播疾病风险行为。
在一家精神病医院和一家心理健康门诊进行了一项横断面试点研究。通过半结构化访谈和病历收集临床、行为和人口统计学数据。从两个中心预先定义的名单中随机选取120名患者，其中89名（74%）接受了访谈，表明无应答率为26%。对方案、参与率、同意书和可行性问题进行了评估。通过在最长一周的间隔内以1:1的比例随机重复访谈，对半结构化访谈的信度（评分者内和评分者间）和结构效度进行了评估。通过一致性百分比和kappa统计量（95%置信区间）估计信度。通过隶属度模型评估结构效度。
大多数变量的kappa统计量范围为0.40至1.00。隶属度分析产生了三种概况。概况一主要由处于稳定关系中未使用避孕套的女性组成；概况二显示主要是处于稳定关系但有多种风险行为的男性；而概况三表明合法或非法物质使用的比例较高。
使用隶属度分析进行的信度和结构效度评估表明，半结构化访谈适用于捕捉慢性精神疾病患者的风险行为。
