Well Referenced

Tag: case-control study

Anorexigens and Pulmonary Hypertension in the United States: Results from the Surveillance of North American Pulmonary Hypertension

This 2000 prospective surveillance study assessed the association between anorexigen use and pulmonary hypertension (PH) across 12 North American referral centers. Among 579 patients, 205 had primary pulmonary hypertension (PPH) and 374 had secondary PH (SPH). The study found a significant association between fenfluramine use and PPH, with an adjusted

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June 26, 2025 No Comments

Does ozonation of drinking water reduce the risk of bladder cancer?

This 2004 case-control study by Chevrier et al. investigated the association between ozonated drinking water and bladder cancer risk in France. Analyzing data from 281 cases and 272 controls with at least 70% residential exposure data over 30 years, the study found that longer exposure to ozonated water correlated with

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June 26, 2025 No Comments

Appetite-suppressant drugs and the risk of primary pulmonary hypertension?

This 1997 editorial by M. Deitel discusses findings from a multicenter case-control study involving 95 patients with primary pulmonary hypertension (PPH) and 355 matched controls. The study identified a significant association between the use of anorexic agents, particularly fenfluramine derivatives, and the development of PPH. The risk increased with longer

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June 26, 2025 No Comments

The Association Between Urinary Cadmium Levels and Dietary Habits with Risk of Gastrointestinal Cancer in Tabriz, Northwest of Iran

This case-control study investigated the relationship between urinary cadmium (U-Cd) levels, dietary habits, and the risk of gastrointestinal (GI) cancer among 111 patients with GI cancer and 111 healthy controls in Tabriz, Iran. Urinary cadmium concentrations were measured using graphite furnace atomic absorption spectrophotometry. The study found that GI cancer

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June 26, 2025 No Comments

The association between homocysteine and myocardial infarction is independent of age, sex, blood pressure, cholesterol, smoking and markers of inflammation: the Glasgow Myocardial Infarction Study

This case-control study from the Glasgow Myocardial Infarction Study evaluated the association between plasma homocysteine levels and myocardial infarction (MI) in 712 MI patients and 697 age- and sex-matched controls. Results showed that elevated homocysteine levels were significantly associated with nearly double the risk of MI (OR 1.9; 95% CI:

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June 26, 2025 No Comments