PMID- 19235776 OWN - NLM STAT- MEDLINE DCOM- 20090507 LR - 20220408 IS - 1099-1557 (Electronic) IS - 1053-8569 (Linking) VI - 18 IP - 4 DP - 2009 Apr TI - Risk of community-acquired pneumonia and the use of statins, ace inhibitors and gastric acid suppressants: a population-based case-control study. PG - 269-75 LID - 10.1002/pds.1715 [doi] AB - PURPOSE: Previous studies have shown that treatment with gastric acid suppressants may be associated with an increased risk of pneumonia whilst the use of statins and ACE inhibitors (ACEI) may decrease the risk of acquiring pneumonia. The evidence is conflicting however. Our aim was to investigate the effect of these drugs on pneumonia using population-based data from the UK. METHODS: We conducted a general population-based case-control study using the health improvement network (THIN), a comprehensive UK general practice database. Conditional multiple logistic regression was used to assess the association between the exposures and pneumonia. RESULTS: After adjusting for potential confounders, a current prescription for statins was associated with a significant reduction in the risk of pneumonia (adjusted OR 0.78, 95% CI 0.65-0.94). Similarly, a current prescription for ACEI was associated with a reduction in the risk of pneumonia (adjusted OR 0.75, 95% CI 0.65-0.86). Contrary to previous study results we did not find a significant association between current prescription for histamine 2 receptor antagonist (H(2)RA) and pneumonia risk (adjusted OR 1.14, 95% CI 0.92-1.40) but current prescriptions for proton pump inhibitors (PPI) were associated with an increased risk of pneumonia (adjusted OR 1.55, 95% CI 1.38-1.77). CONCLUSIONS: Statins and ACE inhibitors were associated with a lower risk of pneumonia but these effects were smaller than those observed in previous studies. People prescribed a PPI, but not an H(2)RA at an increased risk of acquiring pneumonia. FAU - Myles, Puja R AU - Myles PR AD - Division of Epidemiology & Public Health, University of Nottingham, Clinical Sciences Building, City Hospital, Nottingham NG5 1PB, UK. puja.myles@nottingham.ac.uk FAU - Hubbard, Richard B AU - Hubbard RB FAU - McKeever, Tricia M AU - McKeever TM FAU - Pogson, Zara AU - Pogson Z FAU - Smith, Christopher J P AU - Smith CJ FAU - Gibson, Jack E AU - Gibson JE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Pharmacoepidemiol Drug Saf JT - Pharmacoepidemiology and drug safety JID - 9208369 RN - 0 (Angiotensin-Converting Enzyme Inhibitors) RN - 0 (Antacids) RN - 0 (Histamine H2 Antagonists) RN - 0 (Hydroxymethylglutaryl-CoA Reductase Inhibitors) RN - 0 (Proton Pump Inhibitors) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Angiotensin-Converting Enzyme Inhibitors/*therapeutic use MH - Antacids/*adverse effects MH - Case-Control Studies MH - Community-Acquired Infections/epidemiology/*etiology/prevention & control MH - Comorbidity MH - Female MH - Histamine H2 Antagonists/*adverse effects MH - Humans MH - Hydroxymethylglutaryl-CoA Reductase Inhibitors/*therapeutic use MH - Logistic Models MH - Male MH - Medical Records Systems, Computerized MH - Middle Aged MH - Odds Ratio MH - Pneumonia/epidemiology/*etiology/prevention & control MH - Population Surveillance MH - Proton Pump Inhibitors/*adverse effects MH - Risk Assessment MH - Risk Factors MH - United Kingdom/epidemiology EDAT- 2009/02/25 09:00 MHDA- 2009/05/08 09:00 CRDT- 2009/02/25 09:00 PHST- 2009/02/25 09:00 [entrez] PHST- 2009/02/25 09:00 [pubmed] PHST- 2009/05/08 09:00 [medline] AID - 10.1002/pds.1715 [doi] PST - ppublish SO - Pharmacoepidemiol Drug Saf. 2009 Apr;18(4):269-75. doi: 10.1002/pds.1715.