Oct 4, 2010

 

The researchers said they were struck by the variety of ways in which the subjects engaged in sex — 41 different combinations of sexual acts were tallied, encompassing vaginal and anal intercourse, oral sex, and partnered masturbation.

Men are more likely to experience orgasm when vaginal intercourse is involved, while women are more likely to reach orgasm when they engage in variety of acts, including oral sex, said researcher Debra Herbenick, lead author of the section about women's sex lives.

She noted there was a gap in perceptions — 85 percent of the men said their latest sexual partner had an orgasm, while only 64 percent of the women reported having an orgasm in their most recent sexual event.

One-third of women experienced genital pain during their most recent sex, compared to 5 percent of men, said Herbenick, citing this as an area warranting further study.

The study, which began taking shape in 2007, was funded by Church & Dwight Co., the manufacturer of Trojan condoms. Questions about condom usage figured prominently in the study, but the researchers — during a teleconference — insisted the integrity of their findings was not affected by the corporate tie.

Among the findings was a high rate of condom usage among 14- to 17-year-olds. Of the surveyed boys who had sexual intercourse, 79 percent reported using a condom on the most recent occasion, compared to 25 percent for all the men in the survey.

However, the sample for that particular question involved only 57 teens in the 14-to-17 age range. That's far smaller than the thousands involved in latest federal Youth Risk Behavior Survey last year which calculated condom use among sexually active high school students at 61 percent

Fortenberry nonetheless found the new findings encouraging.

"There's been a major shift among young people in the role condoms have in their sexual lives," he said. "Condoms have become normative."

Another intriguing finding — rates of condom usage among black and Hispanic men were significantly higher than for whites. The researchers said this suggested that HIV-AIDS awareness programs were now making headway in those communities, which have relatively high rates of the disease.

The lowest condom usage rates were for men over 50 — and the researchers said this was worrisome. Although men in that age group are more likely to be married than males in their teens and 20s, other surveys have shown 50s-and-over to be far more open to multiple sexual partners than in the past, raising the risk for disease.

Other notable findings:

_While about 7 percent of adult women and 8 percent of men identify as gay, lesbian or bisexual, the proportion of individuals who have had same-gender sex at some point in their lives is higher. For example, 15 percent of the men aged 50-59 said they had received oral sex from another man at some point.

_Among adolescent boys, only about 2 percent of the 14-year-olds — but 40 percent of the 17-year-olds — said they had engaged in sexual intercourse in the past year.

The survey was conducted from March through May of 2009, with the assistance of Knowledge Networks, among a nationally representative sample of adolescents and adults. Once people were selected to participate, they were interviewed online; participants without Internet access were provided it for free.

The researchers said the 1994 survey was compiled through in-person interviews, while the new method — collecting data over the Internet — may help make respondents more comfortable about discussing sexual behaviors.

Dr. Irwin Goldstein, editor-in-chief of the Journal of Sexual Medicine, noted that the new study came more than 60 years after Alfred Kinsey — also based at Indiana University — published his groundbreaking report, "Sexual Behavior in the Human Male."

"Just like then, these papers contain material that is avant garde and often considered off-limits," Goldstein wrote in a forward to the study. "At a time when we can have nudity on HBO but cannot use the names of our genitals on the evening news, there remains a need to continue research on sexual health." source

___

Online:

http://www.nationalsexstudy.indiana.edu


4 comments:

Post a Comment