Community-level changes in condom use and uptake of HIV PrEP by gay and bisexual men in Melbourne and Sydney

Lancet HIV (2018). Published online 06 June 2018. doi: 10.1016/S2352-301830072-9.

Abstract:

Background

Pre-exposure prophylaxis (PrEP) has been rapidly rolled out in large, publicly funded implementation projects in Victoria and New South Wales, Australia. Using behavioural surveillance of gay and bisexual men, we analysed the uptake and effect of PrEP, particularly on condom use by gay and bisexual men not using PrEP.

Methods

We collected data from the Melbourne and Sydney Gay Community Periodic Surveys (GCPS), cross-sectional surveys of adult gay and bisexual men in Melbourne, VIC, and Sydney, NSW. Recruitment occurred at gay venues or events and online. Eligible participants were 18 years or older (face-to-face recruitment) or 16 years or older (online recruitment), identified as male (including transgender participants who identified as male); and having had sex with a man in the past 5 years or identified as gay or bisexual, or both. Using multivariate logistic regression, we assessed trends in condom use, condomless anal intercourse with casual partners (CAIC), and PrEP use by gay and bisexual men, controlling for sample variation over time.

Findings

Between Jan 1, 2013, and March 31, 2017, 27 011 participants completed questionnaires in the Melbourne (n=13 051) and Sydney (n=13 960) GCPS. 16 827 reported sex with casual male partners in the 6 months before survey and were included in these analyses. In 2013, 26 (1%) of 2692 men reported CAIC and were HIV-negative and using PrEP, compared with 167 (5%) of 3660 men in 2016 and 652 (16%) of 4018 men in 2017 (p<0·0001). Consistent condom use was reported by 1360 (46%) of 2692 men in 2013, 1523 (42%) of 3660 men in 2016, and 1229 (31%) of 4018 men in 2017 (p<0·0001). In 2013, 800 (30%) of 2692 men who were HIV-negative or untested and not on PrEP reported CAIC, compared with 1118 (31%) of 3660 men in 2016, and 1166 (29%) of 4018 in 2017 (non-significant trend).

Interpretation

A rapid increase in PrEP use by gay and bisexual men in Melbourne and Sydney was accompanied by an equally rapid decrease in consistent condom use. Other jurisdictions should consider the potential for community-level increases in CAIC when modelling the introduction of PrEP and in monitoring its effect.

Women’s Preferences for Pen1s Size: A New Research Method Using Selection among 3D Models

(Note; some spelling has been changed in this post to avoid automatic spam filters for email subscribers)

PLoS ONE 10(9): e0133079. doi:10.1371/journal.pone.0133079

Abstract

Women’s preferences for pen1s size may affect men’s comfort with their own bodies and may have implications for sexual health.

Studies of women’s pen1s size preferences typically have relied on their abstract ratings or selecting amongst 2D, flaccid images. This study used haptic stimuli to allow assessment of women’s size recall accuracy for the first time, as well as examine their preferences for erect pen1s sizes in different relationship contexts.

Women (N = 75) selected amongst 33, 3D models. Women recalled model size accurately using this method, although they made more errors with respect to pen1s length than circumference. Women preferred a pen1s of slightly larger circumference and length for one-time (length = 6.4 inches/16.3 cm, circumference = 5.0 inches/12.7 cm) versus long-term (length = 6.3 inches/16.0 cm, circumference = 4.8 inches/12.2 cm) sexual partners.

These first estimates of erect pen1s size preferences using 3D models suggest women accurately recall size and prefer pen1ses only slightly larger than average.

Access full text (open access) here 

A third of over-70s report ‘frequent sexual activity’

NHS (UK), Thursday January 29 2015

“A third of pensioners have sex at least twice a month,” the Daily Mail reports. A new UK study reinforces the point that sex doesn’t automatically stop once a person gets their free bus pass.

Read more here

Viagra used by twice as many gay men as ecstasy

Star Observer, September 18, 2014

ECSTASY use by gay men in Australia has plummeted by more than two thirds over the last decade, eclipsed by erectile dysfunction medications (EDMs) such as Viagra and Cialis…