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  • Age  (1)
  • Endometrial cancer  (1)
  • nevus  (1)
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  • 1
    ISSN: 1573-7225
    Keywords: Age ; melanoma ; migration ; nevus ; pigmentation ; sunlight ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: A survey to ascertain factors associated with benign melanocytic nevi or moles was conducted among randomly-selected White adults (aged 18 to 50 years) in Washington State (United States). Participants of the telephone interview in 1990–91 were questioned about lifetime places of residence and constitutional factors. Subjects counted raised nevi on their arms at the end of the survey. Logistic regression was used to examine the risk for two or more nevi compared with no nevi. Individuals who resided in warmer areas and lower latitudes than Washington State were at higher risk of having multiple nevi. This association held for residence at birth, during childhood, adolescence, and over lifetime: an odds ratio (OR) of 2.3 (95 percent confidence interval =1.2–4.3) for lifetime average daily maximum temperature of ≥64°F compared with 58.9°F, and similar ORs of 2.1 for adolescence and 1.8 for childhood. These associations remained significant after adjusting for potential confounding effects of constitutional factors and for childhood sunburns as a potential mechanism. Risk of multiple nevi was reduced for both early age at migration and longer duration of stay in Washington. These data are consistent with the importance of childhood and adolescent sun exposure in the etiology of nevi, but also suggest an effect of lifetime sun exposure.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-7225
    Keywords: Endometrial cancer ; estrogens ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: While there are a number of benefits to the health of postmenopausal women from use of unopposed estrogens, the increased risk of endometrial cancer related to these hormones has led many women to use combined estrogen-progestogen therapy instead, or not to use hormones at all. Most women who take hormones do so only in the early portion of their postmenopausal years, so the risk of endometrial cancer following cessation of use might bear heavily on the overal risk/benefit evaluation. We analyzed data from a case-control study of women in western Washington (United States) to assess the magnitude of excess risk of endometrial cancer following discontinuation of estrogen use. Cases (n=661) consisted of women aged 45 to 74 diagnosed between 1985 and 1991 who resided in one of three counties in Washington State. Controls (n=865) were identified by random-digit dialing. Subjects were interviewed in-person to ascertain current and prior hormone use. The analysis was restricted to women who had not received combined estrogen-progestin therapy. Among women who had used unopposed estrogens at some time, risk of endometrial cancer declined as time since last use increased. Nonetheless, even among women who used these hormones for just a few years, the risk remained elevated by 30 to 70 percent almost a decade after cessation. These results, combined with those of most (but not all) other studies of this issue, suggest that a woman who has discontinued unopposed estrogen therapy may retain a small increased risk of endometrial cancer for a long period of time.
    Type of Medium: Electronic Resource
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