An oft repeated statistic is that 45% of transgender people attempt suicide at some time in their lives.  A simple spread sheet calculation shows that this probably can't be the case given the observed increase in the number of transgender people.  Something else must have been going on with the particular study that is often cited (and misquoted) for that statistic.   If that statistic is generalize-able to the whole transgender population then over a 50 year period the transgender population shrinks by half.\ref{921809}   This is the opposite of the observed trend.  Therefore it is mathematically impossible for that number to generalize beyond the sample in the cited study.