Background. - Regulations concerning services for handicapped children
in France have defined the notion of multi-handicap. There are, howev
er divergences in the procedures for applying this definition, and dif
ferences in the prevalence in different areas. This study is aimed at
clarifying these two points. Population and methods. - A survey in thr
ee French departments provided data about disabled children born betwe
en 1975 and 1985 who received services from the departmental committee
for special education or from day hospitals. The data was systematica
lly collected by a physician using medical files. Results. - The resul
ts showed that the group of multi-handicapped children was heterogeneo
us. The most restrictive definition (motor disability with profound me
ntal retardation bed-ridden or restricted to a chair) resulted in a pr
evalence of 0.73%. A broader definition based on the concept of zero a
utonomy, but excluding mild or moderate menial retardation, resulted i
n a prevalence of 1.28%. Conclusion. - The importance of specifying th
e objectives of a definition selected for operational reasons is stres
sed in order to improve the estimation of specific needs. (C) 1998, El
sevier, Paris.