Kwun-Yee T Poon

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Red wine contains polyphenol antioxidants that inhibit prostate cancer development in animal studies. We investigated the effect of red wine intake on the risk of prostate cancer using data prospectively collected in the California Men's Health Study (CMHS). CMHS is a multiethnic cohort of 84,170 men aged 45-69 years who were members of the Kaiser(More)
Red wine contains polyphenol antioxidants that inhibit colorectal cancer (CRC) development in animal studies. We investigated the effect of red wine intake on risk of CRC in the California Men's Health Study (CMHS). CMHS is a prospective, multiethnic cohort of middle-aged men who were members of the Kaiser Permanente (KP) California Health Plans and(More)
OBJECTIVE To assess whether patients with psoriasis treated with tumor necrosis factor (TNF) inhibitors have a decreased risk of myocardial infarction (MI) compared with those not treated with TNF inhibitors. DESIGN Retrospective cohort study. SETTING Kaiser Permanente Southern California health plan. PATIENTS Patients with at least 3 International(More)
BACKGROUND The association between obesity and asthma severity and control in children is not well understood. OBJECTIVE The objective of this study was to examine the association of childhood body mass index (BMI) percentile for age of 85% or greater with the number of β-agonist canisters dispensed, corticosteroid courses, emergency department visits,(More)
BACKGROUND The intermittent unavailability of penicilloyl-polylysine since September 2000 has focused interest on commercial anti-penicillin IgE fluorometric enzyme immunoassay (FEIA) tests to evaluate penicillin allergy. There has been no published comparison of commercial anti-penicillin IgE FEIAs and penicillin skin testing performed in the United(More)
PURPOSE To investigate whether the statin class of drugs reduces the risk of cataract extraction. DESIGN Case-control study. METHOD setting: Kaiser Permanente Southern California, which provides prepaid healthcare for 3.2 million residents by 6000 physicians. patient population: Eligible patients were those who had 5+ years of continuous enrollment in(More)
BACKGROUND Data on the rate of positive penicillin skin test (PenST) results over time in large populations are rare. The factors that influence positive PenST results are incompletely understood. OBJECTIVES We sought to correlate demographic variables to the rate of positive PenST results over time in a large group of patients with a history of(More)
BACKGROUND Previous studies provide evidence that there is a greater frequency of autoimmune diseases among patients with psoriasis than in the general population. OBJECTIVE This study examined the association between psoriasis and 21 common autoimmune diseases, specified a priori. METHODS A retrospective cohort study was conducted among persons who(More)