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Risk Factors for Developing Serious Adverse Drug Reactions (ADRs)

Mirošević, Nikica; Janković, Iva; Lovrek, Maja; Krnić, Darko; Macolić Šarinić, Viola; Tomić, Siniša; Duggan, Catherine; Bates, Ian
Risk Factors for Developing Serious Adverse Drug Reactions (ADRs) // The International Society of Pharmacovigilance, 7th Annual Meeting, Bournemouth, Dorset, UK
Bournemouth, Velika Britanija, 2007. (poster, međunarodna recenzija, sažetak, znanstveni)

Risk Factors for Developing Serious Adverse Drug Reactions (ADRs)

Mirošević, Nikica ; Janković, Iva ; Lovrek, Maja ; Krnić, Darko ; Macolić Šarinić, Viola ; Tomić, Siniša ; Duggan, Catherine ; Bates, Ian

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

The International Society of Pharmacovigilance, 7th Annual Meeting, Bournemouth, Dorset, UK / - , 2007

7th ISOP Annual Meeting

Mjesto i datum
Bournemouth, Velika Britanija, 21-24.10.2007

Vrsta sudjelovanja

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Adverse drug reaction; drug-drug interactions

INTRODUCTION Serious adverse drug reactions (ADRs) constitute major concerns, including both individual consequences (eg. deaths and hospitalizations) and public health expense. Several studies have been conducted to assess the importance and economic consequences of adverse drug reactions1-4. However, such work has not been previously undertaken in Croatia. AIM To identify risk factors associated with developing serious ADR. METHODS We performed a retrospective observational study of the ADRs in Croatia reported to the Department for Pharmacovigilance, National Agency for Medicinal Products and Medical Devices for the period from March 2005. to December 2006. All drugs were classified using the Anatomical Therapeutic Chemical (ATC) classification code system, and subsequently entered into a database. ADRs were considered serious if one of the following criteria were met according to the Uppsala Monitoring Center (UMC) definition: the ADR is life threatening ; it led to hospitalization/prolonged stay in hospital ; caused congenital malformation ; permanent disability ; or, medically serious condition according to the CIOMS V (Council for International Organisations for Medical Sciences). Descriptive statistics and logistic regression using SPSS 14.0. were undertaken. RESULTS The results showed that among all the reported ADRs (n=898), 26.1% referred to serious ADRs (n=234). The majority of these serious ADRs (59.4%) were caused by drugs belonging to N (25.7%), J (18.5%), C (15.2%) ATC groups. From this database of ADRs, polypharmacy was associated with an increased risk of experiencing a serious ADR (B=1.226 ; R2=0.026 ; p< 0.005). The relationship between serious ADRs, patient demographics and drug interactions were explored as well. CONCLUSIONS This study has identified factors that contributed to developing serious ADRs reported to Croatian Agency for Medicinal Products and Medical Devices. These data will be used for development of national Risk Management Plans. REFERENCES 1. Lazarou J, Pomeranz BH, Corey PN. Incidence of adverse drug reactions in hospitalized patients: a meta-analysis of prospective studies. JAMA 1998 ; 279:1200-5. 2. Einarson TR. Drug-related hospital admissions. Ann Pharmacother 1993 ; 27:832-40. 3. Bates DW, Spell N, Cullen DJ, Burdick E, Laird N, Petersen LA, et al. The costs of adverse drug events in hospitalized patients. JAMA 1997 ; 277:307-11. 4. Moore N, Lecointre D, Noblet C, Mabille M. Frequency and cost of serious adverse drug reactions in a department of general medicine. Br J Clin Pharmacol 1998 ; 45:301-8.

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