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您所提供链接中的PDF那篇文章本身，内容非常好。
但是，它和之前你自己总结的数据差别很大。文中讲到，美籍非裔有男男性行为的男子，感染HIV的几率是14%，高出白种人或拉丁裔两倍之多，这不是你之前说的接近一半。正视一个问题是对的，之所以要看原始数据，是因为一个数字如果在印象里被膨胀或者扩大许多，就从量变到质变了。
当你查阅医学文献(那个PDF不是研究报告，而主要是个权益日程)的时候，那个14%的数字又掉下去一些，但美籍非裔中的男同性恋或双性恋男子的HIV感染率确实显著要高，他们中相当部分，文化水平较低，缺乏医学常识，在该种族群体中，也缺少相应的支持机构。
就美籍非裔群体本身来看，氛围相对保守，并对同性恋现象很不包容，这来自实在的民意调查和统计数字。美籍非裔的经济状况，平均教育水平，婚姻和家庭结构，都值得思考。通过观察美籍非裔群体中的同性恋亚群体，或许，人们就更能意识到科学教育和文明宽容的重要性。
Gust101 发表于 2012-6-14 09:17 ![]()
"At the 1999 CDC Prevention Conference 5 epidemiologic studies were presented that foretold the seriousness of the epidemic in the Black MSM community. In a study of gay males between the ages of 13-19 who were tested at California state funded testing sites (n=2,638), Black MSM were 5.8 times more likely than their White counterparts to be HIV infected.
In the CDC seven city epidemiologic study of young MSM (n=3492) age 15-22, Black MSM were almost 6 times more likely than their White counterparts to be infected. The infection rate for Black MSM was 14%, compared to 13% in Latino and 3% in Whites. In yet another CDC epidemiologic six-city study of men who came in to STI clinics for testing, Black gay and bisexual men were twice as likely to become infected as compared to White gay and bisexual men. An examination of blood samples in this study revealed that 11% of the infections in African Americans were recent (in the last 4-6 months) as compared to 6.5 for Whites and 7.7 for Latinos."
这个数据是在美国七个城市的年龄在１５到２２岁的MSM中得到的。MSM的样本人数只有３４９２。而且该数据的分母是全部的MSM，包括任何种族的人（白人，亚洲人等等）。１４％只是黑人MSM占整个MSM样本的比率。
而４６％是全美国范围的数据, 是黑人MSM样本中有多少黑人MSM感染HIV。
我再给你一组最近的CDC数据。
Gay, Bisexual, and Other Men Who Have Sex with Men (MSM)[1] of all races and ethnicities remain the population most severely affected by HIV. - CDC estimates that MSM account for just 2% of the U.S. population, but accounted for 61% of all new HIV infections in 2009. MSM accounted for 49% of people living with HIV infection in 2008 (the most recent year national prevalence data are available).
- In 2009, white MSM continued to account for the largest number of new HIV infections of any group in the U.S. (11,400), followed closely by black MSM (10,800).
- Young, black MSM were the only risk group in the U.S. to experience statistically significant increases in new HIV infections from 2006–2009—from 4,400 new HIV infections in 2006 to 6,500 infections in 2009.
- Since the epidemic began, almost 300,000 MSM with AIDS have died, including an estimated 6,863 in 2009.
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http://www.cdc.gov/hiv/resources/factsheets/us.htm |
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楼主: Gust101
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发表于 2012-6-14 08:56:20
