Risk of myocardial infarction in women with pelvic inflammatory disease

Tsan‐Hon Liou, Chin-Wen Wu, Wen-Rui Hao, Ming-I Hsu, Ju‐Chi Liu, Hui‐Wen Lin
In: International Journal of Cardiology · 2012 · vol. 167(2) , pp. 416–420 · doi:10.1016/j.ijcard.2012.01.006 · PMID:22265583 · W2154658026
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This study investigated the association between pelvic inflammatory disease (PID) and the risk of myocardial infarction (MI) in women.

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Abstract

BackgroundThere is evidence that chronic inflammation may promote atherosclerotic disease. The purpose of this study was to test the hypothesis that pelvic inflammatory disease (PID) is a risk marker for myocardial infarction (MI).MethodUsing the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005), this cohort study comprised patients with a recorded diagnosis of PID (N=68,668) between January 1, 2004 and December 31, 2005, with age-matched controls (1:2) (N=136,906). Each patient was followed-up using entry data until the end of 2006. Cox proportional hazard regressions were used to evaluate the up to 3-year MI-free survival rates, after adjusting for known confounding factors.ResultsWe found that patients with PID were more likely to have MI than the control population after adjusting for potential confounders [adjusted hazard ratio (HR), 1.86, 95% confidence interval (CI), 1.23-2.81]. When stratified by patient's age, the adjusted HR for MI was 2.09 (95% CI, 1.24-3.52) for patients with PID aged over 55 years. However, the adjusted HR for MI occurring was not significant for patients with PID aged ≤ 55 years.ConclusionsPID is a risk marker for MI that is independent of traditional MI risk factors. Further research in this important area of public health is warranted.

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