The validity of drug users' self-reports in a non-treatment setting: prevalence and predictors of incorrect reporting methadone treatment modalities
The validity of drug users' self-reports in a non-treatment setting: prevalence and predictors of incorrect reporting methadone treatment modalities
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DOI：
10.1093/ije/28.3.514
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发表时间：
1999-06-01
影响因子：
7.7
通讯作者：
van Ameijden, EJC
中科院分区：
文献类型：
--
作者：
Langendam, MW;van Haastrecht, HJA;van Ameijden, EJC
背景在吸毒者中的流行病学研究通常基于回顾的自我报告。然而，记忆障碍、受药物影响、精神病理学、对问题的误解和社会合意的回答可能会产生不准确的报道。方法本研究利用美沙酮中央登记册的数据，验证了阿姆斯特丹艾滋病队列研究中吸毒者自我报告的当前美沙酮治疗(美沙酮剂量)和中期美沙酮治疗(美沙酮分发的主要地点和之前4-6个月参加美沙酮计划的频率)方面的情况。除了描述性措施外，还使用Logistic回归分析(针对个体内部相关性进行调整)来识别报告不正确的子组。结果准确报告了当前美沙酮用量(未加权kappa[kappa]：0.94，加权kappa[kappa(W)]：0.97)。美沙酮剂量低、学校教育时间短、访谈期间情绪低落或兴奋是错误报告美沙酮剂量的显著独立预测因素。配药的主要地点卡帕为0.82次，出诊频次为卡帕0.53次，卡帕(西)0.87次。有一种倾向于报告极端回答类别。不经常参加计划是错误报告计划出席频率的唯一显著预测因素。结论在社会期望不起重要作用的情况下，吸毒者能够给出有效的自我报告。错误报告的主要原因是认知功能受损、记忆衰竭和对问题的误解。
Background Epidemiological studies among drug users are often based on retrospective self-reports. However, among others, memory failure, being under the influence of drugs, psychopathology, misunderstanding of questions and socially desirable answering may generate inaccurate reporting.Methods This study validated self-reported current (methadone dosage) and medium-term (main location of methadone dispensing and frequency of methadone programme attendance over the previous 4-6 months) aspects of methadone treatment in the Amsterdam AIDS cohort study among drug users, using data of the Central Methadone Register. In addition to descriptive measures, logistic regression analysis was used (adjusted for intra-individual correlation) to identify subgroups with incorrect reporting. Data collected at 4406 visits of SOS cohort participants were analysed.Results Current methadone dosage was accurately reported (unweighted kappa [kappa]: 0.94, weighted kappa [kappa(W)]: 0.97). A low methadone dosage; short duration of school education and depressive or euphoric mood during the interview were significant and independent predictors of incorrect reporting of methadone dosage. For main location of dispensing kappa was 0.82, for frequency of programme attendance kappa was 0.53 and kappa(W) 0.87. There was a tendency to reporting the extreme answering categories. Infrequent programme attendance was the only significant predictor of incorrectly reporting frequency of programme attendance.Conclusions Drug users are able to give valid self-reports in a setting where social desirability does not play an important role. The main reasons of incorrect reporting were impaired cognitive functioning, memory failure and misunderstanding of questions.