A random theory

[Jay]

hmm. i think it's more cause a male fetus is like a 'mutation'. everything starts out as female and 'mutates' into male. (i don't mean the word mutation to be offensive. the only word i can think of right now).

Intresting point Nero.

I think a while back someone was telling about a study on FTMs and that there's not necessarily less FTMs than MTFs as there are FTMs that don't know there can be anything done. Don't hold me to that, though, it's only something I heard.

However I do agree with what Monty said about they being equal of both.. just FTM's might be more stealth that the mtfs.

[SisterGirlfriend]

While I'll agree with you and other posters that the majority of population studies has been conducted on the basis of surgery, and thus just aren't reliable, more recent studies from the UK have been done on the basis of the number of people seeking treatment from the NHS - public healthcare. The statistics include everybody and anybody who pitches up with a gender-dysphoria, so I'd say this is probably quite a bit more accurate. I've written a post about it in my blog as well, and for ease of reference, here are the original studies:

The prevalence of gender dysphoria in Scotland: a primary care study (1999)

and

Gender Dysphoria, Transsexualism and ->-bleeped-<-: Incidence, Prevalence and Growth in the UK (2008)

It makes sense though, don't you think? Every foetus starts out phenotypically female and undifferentiated. Once hormones start to do their thing more change is happening in a male foetus than a female foetus, deviating more from the starting norm, so there are bound to be more copy-and-paste errors.

Something I've been thinking about in the light of this : Seeing as we all start out phenotypically female, it shouldn't be Adam's rib, now should it? Eve was first. 

Mina.

even still, MANY ftms don't seek "treatment" of any sort. many live comfortably in a male role with any sort of medical aid.

[Ellieka]

There are other gender varient syndromes in which a child is born with XYY (kleinfelter's syndrome), XXY (unnamed syndrome) or a female is born with a single X chromosome (turners syndrome).

Just a minor correction, not to be nit picky. If my information is correct XXY is Klienfelter's syndrome and XYY is unnamed. It is debated as to weather XYY should be classified as a syndrome  due to the fact that most XYY males appear normal aside from being taller and having higher testosterone levels. Learning difficulties are associated with both XXY and XYY.

I've done some extensive research on both because it was suspected that I was 47XXY. I had many of the symptoms, thin as a youth, enlarged breast, rounded facial features, and learning difficulties. I was fertile but not overly so.

I wish there had been a study conducted on connections between Kilenfelter's and GID but to date I am not aware of any.