Patient reporting of suspected adverse drug reactions to antiepileptic drugs: Factors affecting attribution accuracy

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• 作者：Narumol Jarernsiripornkul^a ; ^{narumol@kku.ac.th} ; Piyanida Senacom^a ; Verawan Uchaipichat^a ; Nataporn Chaipichit^a ; Janet Krska^b
• 关键词：Antiepileptic drug ; Adverse drug reaction (ADR) ; Adverse drug reaction reporting system ; Patient self-reporting ; Attribution accuracy ; Memory loss ; Somnolence
• 刊名：Epilepsy & Behavior
• 出版年：2012
• 期刊代码：76_15255050
• 类别：neu
• 出版时间：May, 2012
• 卷：24
• 期：1
• 页码：102-106
• 文件大小：177 K

摘要

This study was aimed to assess the frequency and number of suspected ADRs reported by patients taking antiepileptic drugs (AEDs) and to explore the factors that may affect patients' symptom attribution accuracy. A validated questionnaire containing an extensively checklist of symptoms was distributed to outpatients prescribed one or more AEDs. Data on concomitant drugs and diseases were obtained from outpatient records. All symptoms identified were assessed for causality. Of 1388 questionnaires distributed to 1214 patients, 830 completed questionnaires were returned (59.8%) from 727 patients. In total, 7815 symptoms were identified on 757 questionnaires (91.2%). Symptom severity ratings were positively related to the number of symptoms reported (p = 0.003). Causality assessment found that 71.9%of the symptoms were 鈥榯rue鈥?ADRs and 28.1%were 鈥榝alse鈥?ADRs. Attribution accuracy was primarily influenced by the number of symptoms identified and indication for AED therapy, fewer symptoms and use for non-epilepsy indications being associated with greater attribution accuracy.