Publications by authors named "Constance J Johnson"

In spite of the fact that migraines are one of the major problems seen by primary care providers, almost half of people with migraines do not obtain appropriate diagnosis and/or treatment. Migraine occurs in about 18% of women, and is often aggravated by hormonal shifts occurring around women's menses, during pregnancy, and during perimenopause. Quality of life with migraines is often greatly diminished, and many women miss work days and/or are less productive with migraines.

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Women have more migraine than men. Some secondary headaches are more common in women. Menses, pregnancy, and menopause have an impact on the frequency and treatment of headache.

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Background And Purpose: Although acquired immunodeficiency syndrome (AIDS) is thought to increase the risk of stroke, few data exist to quantify this risk. This is the first population-based study to quantify the AIDS-associated risk of stroke.

Methods: We identified all incident ischemic stroke (IS) and intracerebral hemorrhage (ICH) cases among young adults 15 to 44 years of age in central Maryland and Washington, DC, who were discharged from any of the 46 hospitals in the study area in 1988 and 1991.

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Background And Purpose: Antiphospholipid antibodies have been associated with ischemic stroke in some but not all studies.

Methods: We performed a population-based case-control study examining antiphospholipid antibodies (anticardiolipin antibodies and lupus anticoagulants) using stored frozen sera and plasma in 160 cases and 340 controls enrolled in the Stroke Prevention in Young Women study. We evaluated for the presence of anticardiolipin antibody (IgG, IgM, and IgA isotypes) by an enzyme-linked immunosorbent assay and for the lupus anticoagulant using several phospholipid-dependent coagulation tests (activated partial thromboplastin time, dilute Russell's viper venom time) with mixing studies.

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