Thiazolidinediones and the risk of incident congestive heart failure among patients with type 2 diabetes mellitus. Filion, K. B., Joseph, L., Boivin, J., Suissa, S., & Brophy, J. M. Pharmacoepidemiology and Drug Safety, 20(8):785--796, August, 2011. doi abstract bibtex BACKGROUND: Clinical trials suggest that thiazolidinediones (TZDs) may increase the risk of congestive heart failure (CHF). However, their effect on the risk of incident CHF in unselected populations has not been thoroughly investigated. METHODS: Using data from the UK's General Practice Research Database, we conducted a case-control study within a population-based cohort of patients with type 2 diabetes. Cases were identified by a clinical diagnosis of incident CHF and were then classified as possible or probable cases using prescription data. A 90-day drug exposure window was used in the primary analysis, which compared patients prescribed TZDs with those with no prescriptions for anti-diabetic medications. RESULTS: We identified 3405 incident cases (2632 probable and 773 possible) of CHF and 32,042 corresponding controls. TZDs were prescribed in 6.4% of cases and 6.3% of controls. Prescription of TZDs was associated with an increased rate of possible or probable CHF (adjusted rate ratio (RR) = 1.24, 95% CI = 1.01, 1.54 and adjusted RR = 1.24, 95% CI = 0.98, 1.58, respectively). Similar results were obtained when using a 180-day exposure window (RR = 1.38, 95% CI = 1.11, 1.72 and RR = 1.44, 95% CI = 1.12, 1.84, respectively). CONCLUSIONS: Given the totality of the evidence from this and previous studies, the probability of an increased risk for CHF with these agents remains high. However, any increase in CHF risk associated with TZDs may be lower than previously reported.
@article{filion_thiazolidinediones_2011,
title = {Thiazolidinediones and the risk of incident congestive heart failure among patients with type 2 diabetes mellitus},
volume = {20},
issn = {1099-1557},
doi = {10.1002/pds.2165},
abstract = {BACKGROUND: Clinical trials suggest that thiazolidinediones (TZDs) may increase the risk of congestive heart failure (CHF). However, their effect on the risk of incident CHF in unselected populations has not been thoroughly investigated.
METHODS: Using data from the UK's General Practice Research Database, we conducted a case-control study within a population-based cohort of patients with type 2 diabetes. Cases were identified by a clinical diagnosis of incident CHF and were then classified as possible or probable cases using prescription data. A 90-day drug exposure window was used in the primary analysis, which compared patients prescribed TZDs with those with no prescriptions for anti-diabetic medications.
RESULTS: We identified 3405 incident cases (2632 probable and 773 possible) of CHF and 32,042 corresponding controls. TZDs were prescribed in 6.4\% of cases and 6.3\% of controls. Prescription of TZDs was associated with an increased rate of possible or probable CHF (adjusted rate ratio (RR) = 1.24, 95\% CI = 1.01, 1.54 and adjusted RR = 1.24, 95\% CI = 0.98, 1.58, respectively). Similar results were obtained when using a 180-day exposure window (RR = 1.38, 95\% CI = 1.11, 1.72 and RR = 1.44, 95\% CI = 1.12, 1.84, respectively).
CONCLUSIONS: Given the totality of the evidence from this and previous studies, the probability of an increased risk for CHF with these agents remains high. However, any increase in CHF risk associated with TZDs may be lower than previously reported.},
language = {eng},
number = {8},
journal = {Pharmacoepidemiology and Drug Safety},
author = {Filion, Kristian B. and Joseph, Lawrence and Boivin, Jean-François and Suissa, Samy and Brophy, James M.},
month = aug,
year = {2011},
pmid = {21671441},
keywords = {Aged, Aged, 80 and over, Case-Control Studies, Databases, Factual, Diabetes Mellitus, Type 2, Female, Great Britain, Heart Failure, Humans, Hypoglycemic Agents, Male, Middle Aged, Risk, Thiazolidinediones},
pages = {785--796}
}
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However, their effect on the risk of incident CHF in unselected populations has not been thoroughly investigated. METHODS: Using data from the UK's General Practice Research Database, we conducted a case-control study within a population-based cohort of patients with type 2 diabetes. Cases were identified by a clinical diagnosis of incident CHF and were then classified as possible or probable cases using prescription data. A 90-day drug exposure window was used in the primary analysis, which compared patients prescribed TZDs with those with no prescriptions for anti-diabetic medications. RESULTS: We identified 3405 incident cases (2632 probable and 773 possible) of CHF and 32,042 corresponding controls. TZDs were prescribed in 6.4% of cases and 6.3% of controls. Prescription of TZDs was associated with an increased rate of possible or probable CHF (adjusted rate ratio (RR) = 1.24, 95% CI = 1.01, 1.54 and adjusted RR = 1.24, 95% CI = 0.98, 1.58, respectively). Similar results were obtained when using a 180-day exposure window (RR = 1.38, 95% CI = 1.11, 1.72 and RR = 1.44, 95% CI = 1.12, 1.84, respectively). CONCLUSIONS: Given the totality of the evidence from this and previous studies, the probability of an increased risk for CHF with these agents remains high. However, any increase in CHF risk associated with TZDs may be lower than previously reported.","language":"eng","number":"8","journal":"Pharmacoepidemiology and Drug Safety","author":[{"propositions":[],"lastnames":["Filion"],"firstnames":["Kristian","B."],"suffixes":[]},{"propositions":[],"lastnames":["Joseph"],"firstnames":["Lawrence"],"suffixes":[]},{"propositions":[],"lastnames":["Boivin"],"firstnames":["Jean-François"],"suffixes":[]},{"propositions":[],"lastnames":["Suissa"],"firstnames":["Samy"],"suffixes":[]},{"propositions":[],"lastnames":["Brophy"],"firstnames":["James","M."],"suffixes":[]}],"month":"August","year":"2011","pmid":"21671441","keywords":"Aged, Aged, 80 and over, Case-Control Studies, Databases, Factual, Diabetes Mellitus, Type 2, Female, Great Britain, Heart Failure, Humans, Hypoglycemic Agents, Male, Middle Aged, Risk, Thiazolidinediones","pages":"785--796","bibtex":"@article{filion_thiazolidinediones_2011,\n\ttitle = {Thiazolidinediones and the risk of incident congestive heart failure among patients with type 2 diabetes mellitus},\n\tvolume = {20},\n\tissn = {1099-1557},\n\tdoi = {10.1002/pds.2165},\n\tabstract = {BACKGROUND: Clinical trials suggest that thiazolidinediones (TZDs) may increase the risk of congestive heart failure (CHF). However, their effect on the risk of incident CHF in unselected populations has not been thoroughly investigated.\nMETHODS: Using data from the UK's General Practice Research Database, we conducted a case-control study within a population-based cohort of patients with type 2 diabetes. Cases were identified by a clinical diagnosis of incident CHF and were then classified as possible or probable cases using prescription data. A 90-day drug exposure window was used in the primary analysis, which compared patients prescribed TZDs with those with no prescriptions for anti-diabetic medications.\nRESULTS: We identified 3405 incident cases (2632 probable and 773 possible) of CHF and 32,042 corresponding controls. TZDs were prescribed in 6.4\\% of cases and 6.3\\% of controls. Prescription of TZDs was associated with an increased rate of possible or probable CHF (adjusted rate ratio (RR) = 1.24, 95\\% CI = 1.01, 1.54 and adjusted RR = 1.24, 95\\% CI = 0.98, 1.58, respectively). Similar results were obtained when using a 180-day exposure window (RR = 1.38, 95\\% CI = 1.11, 1.72 and RR = 1.44, 95\\% CI = 1.12, 1.84, respectively).\nCONCLUSIONS: Given the totality of the evidence from this and previous studies, the probability of an increased risk for CHF with these agents remains high. However, any increase in CHF risk associated with TZDs may be lower than previously reported.},\n\tlanguage = {eng},\n\tnumber = {8},\n\tjournal = {Pharmacoepidemiology and Drug Safety},\n\tauthor = {Filion, Kristian B. and Joseph, Lawrence and Boivin, Jean-François and Suissa, Samy and Brophy, James M.},\n\tmonth = aug,\n\tyear = {2011},\n\tpmid = {21671441},\n\tkeywords = {Aged, Aged, 80 and over, Case-Control Studies, Databases, Factual, Diabetes Mellitus, Type 2, Female, Great Britain, Heart Failure, Humans, Hypoglycemic Agents, Male, Middle Aged, Risk, Thiazolidinediones},\n\tpages = {785--796}\n}\n\n","author_short":["Filion, K. 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