Blog: Recent Research
Recent News and Research
Recent Research for the Week of July 23 Print

by Emily Bridges, Director, Public Information Services

Teen condom use over the last 2 decades has increased but work is still needed. In this week’s MMWR on trends in HIV-related risk behaviors among high school students we learn that while condom use among sexually active high school students has increased over time (from 45% in 1991 to 60% in 2011), it has leveled off since 2003 – indicating that progress has stalled.  Among Black students, who experience higher rates of HIV than white students, condom use has actually decreased significantly since 1999.  Lawrence Stallworth, an activist with Advocates for Youth and Cleveland AIDS Task Force, commented on the rise in new infections among young African American men who have sex with men in this AP article.

A new report from the Black AIDS Institute has devastating news about the HIV epidemic and Black gay men:  “A young Black gay man has a roughly 1-in-4 chance of being infected by age 25. By the time he is 40 years old, the odds a Black gay men will be living with HIV is roughly 60%. One can scour the entire world and struggle to find a population more heavily affected by HIV/AIDS than Black gay in the U.S.” Lawrence Stallworth is also profiled in this report!

A blog entry from AIDS.gov explains the “treatment cascade” and how initial gaps in diagnosis and treatment lead to millions without adequate care.  “For every 100 individuals living with HIV in the United States, it is estimated that: 80 are aware of their HIV status; 62 have been linked to HIV care; 41 stay in HIV care; 36 get antiretroviral therapy (ART); and only 28 are able to adhere to their treatment and sustain undetectable viral loads.

The drug Truvada was recently approved as “pre exposure prophylaxis,” meaning that people who are at high risk for HIV may use it as HIV prevention.  Here is a list of frequently asked questions about Truvada from the maker of the drug.  More guidance as to its usage is expected from the FDA and other public health entities by the end of this year.

The Journal of the American Medical Association found that of the nearly 192,000 people living with HIV in the United States, 31,000 were born outside the United States.  Many immigrants experience strong barriers to HIV diagnosis and treatment, also discussed in the article.

Many adolescents involved in pregnancy, whose partners have concurrent relationships, are not aware of the concurrency. In this study in Sexually Transmitted Diseases, researchers surveyed nearly 300 pregnant adolescents and their partners and found that 60% of participants were not aware their partner had other partners.  Concurrency is a major factor in STI rates; researchers point out the need to improve sexual communication in this population.

More than a third of births in the United States are the result of unintended pregnancy. This proportion has not declined since 1982. Women ages 20-34 account for 68% of these, teens, 22%, and women over 35, 9%.

 
Recent Research for 7/12/12 Print

by Emily Bridges, Director, Public Information Services

Here are some relevant studies from recent weeks.

  1. Satisfying the unmet need for contraception could save 100,000 lives each year. This special collection of family planning articles from the Lancet was released to coincide with the Family Planning Summit in London.   For this article, researchers examined data from 172 countries to estimate how many maternal deaths had been averted by contraception (over 272,000). Then, working with the estimates of unmet contraceptive needs, they estimated how many lives might be saved by meeting the need for contraception (104,000).  Complications from pregnancy, including childbirth and unsafe abortion, are the leading cause of death for young women ages 15-19 in low and middle income countries.
  2. The HPV vaccine may already be creating “herd immunity.” “Herd immunity” is a term that refers to when vaccination protects even those who are not vaccinated by reducing the number of people who are susceptible to a disease and breaking the chain of infection. The study found that between a group of young women ages 13-26 seen at a clinic in 2006, and a group seen in 2009 after the vaccine was widely available, rates of HPV had dropped by 50% even among those who had not received the vaccination.  The participants in the study were low-income African American women living in an urban area; nationwide, urban African American young women experience high rates of STDs, which this vaccination may help lower.
  3. Health Affairs assesses PEPFAR. The most recent issue of the journal Health Affairs assesses the President’s Emergency Plan for AIDS Relief.  As activists work for an AIDS-free generation, the journal examines the successes and failures of the project and makes recommendations for “third wave” strategies.  Earlier this year, Advocates for Youth assessed PEPFAR’s youth-focused policy and found that while promising components are visible, many policies are confusing or inadequate to address youth HIV prevention needs.
  4. Sexually abused boys are more likely to report risky sexual behaviors. Researchers examined existing studies on sexual abuse and risky sexual behavior and found that boys who have been sexually abused are more likely to report unprotected sex, multiple partners, and involvement in pregnancy in adolescence.  Advocates recently published 2 papers on sexual abuse statistics, signs, and prevention:  an Overview,  and an in-depth look at Prevention and Resilience.
 
Fast Facts for July 2012 Print

by Emily Bridges, Director, Public Information Services

It seems like every week brings a new study about young people and sexual health. Below are some of the "headlines" - important statistics from major sources of data.  And don't forget to explore our series of frequently updated guides to research on adolescent reproductive and sexual health issues at researchguides.advocatesforyouth.org.

As Of July 9, 2012

HIV

 US

There were an estimated 48k new infections in 2009 – 1/3 among young people ages 13-29.               (CDC HIV Incidence Estimates released August 2011)

NEW THIS MONTH:

 Over 34k young people are living with HIV in US.

In 2010 male to male sexual transmission accounted for 90% of new infections among young men ages 13-24.

African Americans accounted for 60% of new infections among young people ages 13-24. (HIV Surveillance among adolescents and young adults)

Only 22.6% of sexually active high school students have ever been tested for HIV  (Archives of Pediatrics, January 2)

International

5 million young people ages 15-24 are living with HIV around the world (Opportunity in Crisis, Unicef)

Young people ages 15-24 account for 42% of all new HIV infections (UNAIDS report 2011, Core Slides, Slide 11)


STIs

There are 19 million new infections every year; young people ages 15-24 account for “almost half.” CDC 2010 STD surveillance

 

Teen Pregnancy and Birth

US

750,000 teens younger than 20 become pregnant each year.

The teen pregnancy rate is 67.8 pregnancies per 1000 young women ages 15-19(US Teenage Pregnancies, Births, And Abortions, 2008 (Guttmacher) (page 2))

The teen birth rate hit a record low of 34.3 births per 1000 teens in 2010. Almost 368,000 teens ages 15-19 gave birth in 2010. (CDC: Birth Rates to Teenagers Reach Historic Lows)

Among teens who gave birth, 50% were not using birth control and 31% of these believed they could not become pregnant.(CDC: Prepregnancy Contraceptive Use Among Teens with Unintended Pregnancies Resulting in Live Birth)

Worldwide

16 million teens ages 15-19 give birth every year (WHO: 10 Facts on Adolescent Health, Slide 3)


Abortion

Almost one in three U.S. women has an abortion in her lifetime (Guttmacher “Induced Abortion” Factsheet)

 Adolescents ages 15-19 account for 16% of U.S. abortions (Abortion Surveillance (2008/released Nov 2011)

47,000 women die from unsafe abortion every year worldwide (WHO, unsafe abortion)


Sexual Activity and Contraceptive Use


2011 YRBS Data (Youth Risk Behavior Surveillance 2011)

  1. 47.4 percent of all high school students (grades 9-12) have ever had sex; 63 percent of high school seniors report ever having had sex. 
  2. 33.7 percent of students are currently sexually active; 47.5% of seniors are currently sexually active 
  3. 60.2 percent of sexually active students used a condom at last intercourse.

During 2006–2010, 57% of females aged 15–19 years had never had sex (defined as vaginal intercourse), an increase from 49% in 1995. Approximately 60% of sexually active teens reported using highly effective contraceptive methods, an increase from 47% in 1995. (CDC, Sexual Experience and Contraceptive Use Among Female Teens — United States, 1995, 2002, and 2006–2010)

By the age of 19, 70 percent of young people have had sex. (Guttmacher , “Facts on Amer. Teens Repro Health”)

 In 2006–2010, about 43% of never-married female teenagers (4.4 million), and about 42% of never-married male teenagers (4.5 million) had had sexual intercourse at least once – a total of nearly 9 million teens who have already had sex. (NSFG Analysis, 2010)

  95% of all people have sex before they are married. (Guttmacher:  Trends in Premarital Sex in the United States, 1954–2003)

 5.5% of young women ages 15-24, and 8.3% of young men ages 15-24, reported HIV sexual risk behaviors compared to 3.9% of women overall and 7.2% of men overall. (CDC: HIV risk Behaviors in the U.S.)


Bullying, Violence, and Harassment

 48 % of students have been sexually harassed. (AAUW report, 2010)

32% of all students have been bullied at school; 11% physically bullied (Dept of Ed report, 2010)

85% of LGBT students have been bullied at school, 28% physically. (GLSEN Climate Report 2009)

8% of high school students have been forced to have intercourse; 9% have experienced dating violence. (Youth Risk Behavior Surveillance 2011)


With questions or comments, contact:

Emily Bridges, Director of Public Information Services, Advocates for Youth
202 419 3420
This e-mail address is being protected from spambots. You need JavaScript enabled to view it .  Explore our series of frequently updated guides to research on adolescent reproductive and sexual health issues at researchguides.advocatesforyouth.org

 
Good and Bad News in the newest HIV Surveillance Report

by Emily Bridges, Director, Public Information Services

Yesterday the District of Columbia Department of Health’s HIV/AIDS, Hepatitis, STDs, and TB  released its annual report for 2011, which contained the city’s HIV statistics for 2010.

There was some good news:  the prevalence of HIV, or percent of people who are living with the virus, dropped from 3.2 percent to 2.7 percent, a drop that may be accounted for by changes in data collection and population growth in the city. Prevalence among youth was lower than the overall prevalence rate – 0.1 percent for those ages 13-19, and 1.0 percent for those ages 20-29.

New diagnoses of HIV also fell by 24 percent between 2006 and 2010, while HIV-related deaths have decreased by 72 percent as many HIV patients are receiving treatment earlier.

The report, however, contained some disturbing news: the HIV prevalence among African American women in poorer neighborhoods has nearly doubled, from 6.3 percent in 2008 to 12.1 percent in 2010.  Over 90 percent of HIV positive women in the District are Black.

Taking a closer look at the data for young people,

  • Young people ages 13-29 made up about ¼ of all new HIV infections from 2006-2010.
  • African Americans accounted for 92 percent of new infections among those ages 13-19 and 76 percent of new infections among those ages 20-29, for a total of 78 percent of infections among those ages 13-29.  Hispanics accounted for seven percent of infections among those ages 13-29, and whites, 12 percent. By comparison, in 2010 African Americanss made up 51 percent of DC’s population, whites, 39 percent, and Hispanics, 9 percent.

The HIV epidemic among African Americans is affected by a number of factors, including poverty, lower access to health care, and institutionalized racism.   (Learn more about disparities in the epidemic)  African Americans are more at risk of infection even when they have equal or fewer risk behaviors.  So while it is important to teach young people how to protect themselves from HIV, it’s as important or more to support structural interventions which seek to address or influence social, political and/or economic environments.

 
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