期刊
INTERNATIONAL JOURNAL OF CARDIOLOGY
卷 179, 期 -, 页码 178-185出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2014.10.028
关键词
Cancer mortality; Hypertensive patients; Antihypertensive agents; Associated factors; Chinese population
Current evidence is mixed regarding the association between antihypertensive prescriptions and cancer mortality. We evaluated this association in a large Chinese hypertensive population. We followed for five years all patients who were prescribed their first-ever antihypertensive agents between 2001 and 2005 in a public healthcare sector of Hong Kong. The association between antihypertensive drug class and cancer mortality was evaluated by Cox proportional hazard models with propensity score matching. Age, gender, socioeconomic status, service settings, district of residence, proportion of days covered reflecting medication adherence, and the number of comorbidities were adjusted. From 217,910 eligible patients, 9500 (4.4%) died fromcancer within five years after their first-ever antihypertensive prescription. Most cancer deaths occurred in the digestive (38.9%) and respiratory system(30.4%); the breast (6.2%); and the lympho-hematopoietic tissues (5.3%). The proportion of patients who died from cancer was the highest in the calcium channel blocker (CCB) group (6.5%), followed by thiazide diuretics (4.4%), angiotensin converting enzyme inhibitors (4.2%) and beta-blockers (2.6%). When compared with beta-blockers, patients prescribed CCBs (Adjusted Hazard Ratio [AHR] = 1.406, 95% C.I. 1.334-1.482, p < 0.001) were more likely to die from cancer. Thiazide users were also more likely to suffer from cancer deaths (AHR = 1.364, 95% C.I. 1.255-1.483, p < 0.001), but became insignificant in stratified analysis. The association between cancer mortality and use of CCB, and perhaps thaizide, may alert physicians to the need for more meticulous and comprehensive care of these patients in clinical practice. We recommend prospective studies to evaluate cause-and-effect relationships of these associations. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
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