IS THERE A CHANGE?
 
 
NIH reports incidence of 15-20/10,000
- “Others” estimate 40-70/10,000
 - Real incidence may be 1 - 3% (or more)
 
?? Easier criteria to meet PDD
- Were these children ‘missed in the past’
 
Increased incidence (in mothers) of :
- Miscarriages
 - Infertility
 - Pre-eclampsia 
 - Bleeding during pregnancy