PMID- 22298501 OWN - NLM STAT- MEDLINE DCOM- 20120815 LR - 20181201 IS - 1099-1557 (Electronic) IS - 1053-8569 (Linking) VI - 21 IP - 5 DP - 2012 May TI - Predictors and time trends in clopidogrel and proton pump inhibitor coprescription with low-dose acetylsalicylic acid. PG - 463-9 LID - 10.1002/pds.3195 [doi] AB - PURPOSE: To determine trends and predictors of clopidogrel and proton pump inhibitor (PPI) coprescription with low-dose acetylsalicylic acid (ASA) prescribed for secondary cardiovascular or cerebrovascular disease (CVD) prevention in UK primary care. METHODS: Patients aged 50-84 years who received a first prescription for low-dose ASA for secondary CVD prevention in 2000-2001 (n = 10,330) or 2006-2007 (n = 8154) were identified in The Health Improvement Network UK primary care database. Clopidogrel or PPI coprescriptions received within 15 days after the first low-dose ASA prescription were ascertained. RESULTS: Clopidogrel coprescription with low-dose ASA increased from 1.6% to 25.2% between the two study periods; PPI coprescription increased from 11.6% to 28.3%. Low-dose ASA indications of myocardial infarction [odds ratio (OR) 11.7, 95% confidence interval (CI) 10.2 to 13.4] and unstable angina (OR 1.73, 95%CI 1.09 to 2.75) were positive predictors of clopidogrel coprescription in 2006-2007, relative to chronic ischaemic heart disease. Patients at high risk of upper gastrointestinal bleeding were more likely to receive a PPI than those at lower risk in 2006-2007 (OR 4.36, 95%CI 3.93 to 4.84). In this period, 65.5% of patients who required a clopidogrel coprescription according to guideline recommendations received one, and 44.3% of patients at high risk of upper gastrointestinal bleeding received a PPI. CONCLUSION: Clopidogrel and PPI coprescription with low-dose ASA increased markedly between 2000-2001 and 2006-2007; however, many patients on low-dose ASA did not receive the recommended coprescriptions at the end of the study period. CI - Copyright (c) 2012 John Wiley & Sons, Ltd. FAU - Cea Soriano, Lucia AU - Cea Soriano L AD - Spanish Centre for Pharmacoepidemiologic Research (CEIFE), Madrid, Spain. luciaceife@telefonica.net FAU - Bueno, Hector AU - Bueno H FAU - Johansson, Saga AU - Johansson S FAU - Garcia Rodriguez, Luis A AU - Garcia Rodriguez LA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120201 PL - England TA - Pharmacoepidemiol Drug Saf JT - Pharmacoepidemiology and drug safety JID - 9208369 RN - 0 (Platelet Aggregation Inhibitors) RN - 0 (Proton Pump Inhibitors) RN - A74586SNO7 (Clopidogrel) RN - OM90ZUW7M1 (Ticlopidine) RN - R16CO5Y76E (Aspirin) SB - IM MH - Aged MH - Aged, 80 and over MH - Aspirin/administration & dosage/adverse effects/*therapeutic use MH - Cardiovascular Diseases/prevention & control MH - Cerebrovascular Disorders/prevention & control MH - Clopidogrel MH - Drug Therapy, Combination MH - Female MH - Gastrointestinal Hemorrhage/chemically induced/prevention & control MH - Humans MH - Male MH - Middle Aged MH - Platelet Aggregation Inhibitors/administration & dosage/adverse effects/*therapeutic use MH - Practice Guidelines as Topic MH - Practice Patterns, Physicians'/standards/statistics & numerical data MH - Primary Health Care/statistics & numerical data MH - Proton Pump Inhibitors/administration & dosage/*therapeutic use MH - Retrospective Studies MH - Risk Factors MH - Ticlopidine/administration & dosage/adverse effects/*analogs & derivatives/therapeutic use MH - Time Factors MH - United Kingdom EDAT- 2012/02/03 06:00 MHDA- 2012/08/16 06:00 CRDT- 2012/02/03 06:00 PHST- 2011/07/04 00:00 [received] PHST- 2011/11/14 00:00 [revised] PHST- 2011/11/28 00:00 [accepted] PHST- 2012/02/03 06:00 [entrez] PHST- 2012/02/03 06:00 [pubmed] PHST- 2012/08/16 06:00 [medline] AID - 10.1002/pds.3195 [doi] PST - ppublish SO - Pharmacoepidemiol Drug Saf. 2012 May;21(5):463-9. doi: 10.1002/pds.3195. Epub 2012 Feb 1.