It also found that from 1996-99 there was no difference between birth defect rates for New Zealand and Taranaki. For 1988-98 there was no difference in the local and national rates for deaths associated with birth defects.
From 1988 to 1995, the local admissions for multiple sclerosis were about the same as the national rate. Since then the local rate has been half the national rate.
Health protection officers have met the Dioxin Investigation Network headed by campaigner Andrew Gibbs. The organisation had claimed that dioxin from the former Ivon Watkins-Dow plant in New Plymouth was affecting people's health.
It is compiling a database of people who lived in the area, from questionnaires sent out to past and present residents.
The dioxin report - full text