ARPKD is one of the commonest inheritable infantile cystic renal diseases but is far less common than the autosomal dominant polycystic disease (ADPKD), which affects adults. The incidence is estimated at ~1:20,000-50,000 6,9. There is no perceived gender or racial predilection.
Why the female of the species is more bendy than the male. By DAVID DERBYSHIRE. Last updated at 12:25 13 December 2007. It has been obvious to anyone watching Strictly Come Dancing that women tend to be more flexible than men. For every supple Flavia Cacace, there's a slightly more stiff and awkward Gethin Jones. Now scientists think they know the answer why. A study suggests that females have a stronger and more bendy, lower back than males. Scroll down for more ... The differences evolved over millions of years to let expectant mothers stay mobile during pregnancy without the weight of a baby causing them to topple over.
This is true for both men and women. One group had a ring finger which was much longer than the index finger, suggesting that they may be more promiscuous. The other group had fingers which similar in length, meaning they are more likely to seek long-term relationships. Again, the split was not along gender lines.