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9
PART 1
VITAL STATISTICS
Population
The overall civilian population at the middle of the year was
estimated by the Registrar-General to be 331,450.
Movement of Population
The work of the Health Department is complicated by the
migrant nature of a considerable proportion of the population.
Records are kept of the movement of children under five years
of age and during 1966 over 3,400 children in this age group
moved into Wandsworth; during the same period a similar number
were known to leave the Borough and in addition more than
2,000 children moved away without leaving any trace of their
destinations. Of these last, over 500 were traced either inside or
outside Wandsworth. In addition, over 2,000 children under five
years of age changed their addresses inside the Borough.
Area Comparability Factors
Each year, the Registrar-General provides area comparability
factors relating to births and deaths. These factors take into
account the extent to which the age and sex distribution of the
local population differs from that of England and Wales as a whole
and this enables valid comparisons to be made between the birth
and death rates in Wandsworth and those in other areas.
For the year 1966, the factor for births is 0.96 and for deaths
0.81.