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40
1911]
1,000 of the present population. The change in the age and six distribution
was, therefore, detrimental to the health of the community.
Let us now enquire as to what would have occurred supposing the deathrate
at the several age periods had remained unchanged.
Fortunately for Islington the detrimental effect on the death-rate was
counterbalanced by a very considerable improvement in the death-rate from
all causes and at all periods of life. Indeed, if this had not been the case the
death-rate last year would have been 20.0 instead of 14.7 per 1,000 of the
population. In order to show how this fact has been arrived at the two
subsequent Tables have been prepared. In the first of these Tables are given
the death-rates per 1,000 of the population living at each of the nine age
periods in three different years, viz., in 1893, 1901 and 1911. It is not possible
to give the rates for 1891, the census year, because the figures were not taken
out by the predecessor of the Medical Officer of Health, but they are available
for 1893, which, being very near the census year, may be taken as fairly correct
for that year.

These death-rates show that there has been a general improvement in the
mortality at each age period since 1893, and also since 1901, with the single
exception of the age period above 75, at which time of lite the rate has risen
from 133.23 per 1,000 in 1901 to 135.42 in 1911.