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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: combjelly who wrote (487588)	6/12/2009 3:03:55 PM
From: Taro	Read Replies (1) \| Respond to of 1572830

CJ, no DDT is required to prove that breast cancer incidency is growing steep. A typical BS study. Of course the breast cancer incidence rate was higher for women born after DDT than with those born 25 years before. And now would be the time to see same rate falling or at least flattening out after DDT got de facto banned in the West, right? Ha! Taro Estimated Breast-Cancer Mortalities, Incidence, and I/M Ratios, U.S.A * (1) Breast-cancer incidence rises from 68,000 to 184,300 between 1970 and 1996. Factor of Rise = 184,300 / 68,000 = 2.71. Rise = 171 %. (2) Female Population Rise from 1970 to 1995 = 134,461 / 104,309 = 1.29. Rise = 29 %. (Table 2) (3) There is no way that female population increase alone can account for the enormous rise in breast-cancer incidence. (4) During the same period (1970-1996), the number of breast-cancer deaths rose to 44,300 from 30,100. Factor of Rise = 1.47. Rise = 47%. (5) Meanwhile, the fraction of all U.S. women over age 60 keeps increasing (longer lifespan), which means more women are in the ages of high breast-cancer mortality. Thus the raw number of breast-cancer deaths per 100,000 women (all ages combined) has risen, while the AGE-ADJUSTED number of breast-cancer deaths per 100,000 females has remained almost constant. ratical.org The breast cancer epidemic the-actuary.org.uk Printed In Great Britain Breast Cancer in Singapore: Trends in Incidence 1968-1992 A SEOW,* S W DUFFY,* M A McGEE,* J LEE* AND H P LEE* Seow A (Department of Community, Occupational and Family Medicine, National University of Singapore, National University Hospital, Lower Kent Ridge Road, Singapore (0511)), Duffy S W, McGee M A, Lee J and Lee H P. Breast cancer in Singapore: Trends In Incidence 1968-1992. International Journal of Epidemiology 1996; 25: 40-45. Background. Breast cancer is the most commonly occurring cancer among women in Singapore, a country which has experienced significant changes in lifestyle over the past three decades. The increase In incidence of the disease is a matter of some concern. Methods. Data from the population-based Singapore Cancer Registry for 1968-1992 were used to determine time trends, inter-ethnic differences and the contributions of age, period and cohort effects to the incidence of the disease. Results. Our results revealed an average annual Increase of 3.6% over the 25-year period for all women, from 20.2 per 100 000 women in the period 1968-1972 to 38.8 per 100 000 in 1988-1992. There was a statistically significant difference between the three major ethnic groups, the rate of increase being highest In Malays (4.4%) and lowest in Indians (1.4%). The overall increase was attributable to a strong cohort effect that remained significant when adjusted for time period for Chinese women and for all ethnic groups combined. The risk was observed to Increase In successive birth cohorts from the 1890s to the 1960s. Conclusions. Our results suggest that breast cancer incidence rates are likely to continue to Increase more sharply in the future as women bom after the mid-20th century reach the high-risk age groups. They also suggest the pattern by which important aetiologlcal factors for the disease in our population have exerted their effects, and provide support for the role of demographic and lifestyle changes as possible risk factors. Keywords: population-based, age-period-cohort, ethnic groups, incidence trends, breast cancer ije.oxfordjournals.org