"The UK suicide rate was 10.8 deaths per 100,000 population in 2014. The male suicide rate was more than 3 times higher than the female rate, with 16.8 male deaths per 100,000 compared with 5.2 female deaths"

http://www.ons.gov.uk/peoplepopulationandcommunity/birthsdea...

EDIT - Further down in the article, the most common methods noted in the UK are hanging and poison.

What's the suicide attempt rate, though? The argument is that men are more successful at going through with suicide than women, due to chosen methods.

These statistics do not show attempt rate. It does show a gendered difference of poisoning (19% male vs 37% female) and hanging (55% male vs 44% female).

While I don't have a link, it is often reported that women are more likely to use poison/overdose for suicide attempts in the U.S. - it is a reasonable to assume it is the same case in the UK.

Chosen method is probably important, and in the UK we're seeing more women die by suicide because they're choosing more violent methods.

There's some other stuff going on too.

Possibly women have better social support networks; they're possibly better than men at asking for help and talking about the problems they're having. (This is one reason people keep banging on about getting men to talk).

Possibly women find it easier to get psychiatric help. Men tend to see doctors less often, and tend not to talk about some subjects when they're there. Women see doctors more often, and talk about emotions more readily.

Men are more vulnerable to some "triggers" -- relationship breakdown (partly because they sometimes lose contact with children and for the social network stuff mentioned above) or loss of job.