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42
Annual Report of the London County Council, 1911.

Phthisis
death-rates
iu relation to
"social
condition,"
1911.
Tables similar to the above have been published in previous annual reports, and the close
relationship existing between "social condition" and phthisis mortality is conspicuous. It will be
seen that in the lowest social group the death rate from phthisis is approximately twice that in the
highest group.
With a view to learning whether this relationship is more specially marked at particular ages,
tables are appended showing phthisis death rates per 100,000 living among males and females in several
age groups. The measure of "social condition" is that used throughout this report and is based on
the percentage of all children between the ages of 5 and 14 scheduled in the borough by the Council
for education purposes in the years 1905-7. The figures on which the rates for the age periods 0-15
years are calculated are too small for definite conclusions to be drawn, but it is evident upon consideration
of the rates at higher ages, especially from 45 to 65 years, that "social condition" has marked
influence upon phthisis mortality. This influence is also to be observed in connection with the mortality
from all tubercular diseases, including phthisis, tabes mesenterica, tubercular meningitis, and other
tubercular diseases, and for the purpose of comparison tables have been prepared showing the mortality
from all tubercular diseases in the same form as the phthisis mortality tables to which reference has
just been made.

(a) See footnote (a) to page 13 and (c) to page 2. (b) See footnote (b) page 7.