Wellington - Nearly one-in-three New Zealand men say they have felt pressured to have sex or did so unwillingly, according to a newspaper survey published on Sunday.

Urban men in their late 30s and early 40s were most likely to say they had been victims of unwanted advances by women, the Sunday Star- Times reported, quoting a national survey of more than 5 600 men.

The survey showed that men in their 20s were more loyal to their current partners than those in their late 30s and early 40s, an age group in which nearly one-in-four admitted having affairs.

The survey found that 29 percent of male New Zealand teenagers were virgins, a condition most changed in their early 20s when the proportion dropped to 6 percent. - Sapa-dpa