Difficulties in Computing Civil, Death Rates for 1918
By:"Edgar Sydenstricker"
Published on 2015-08-04 by
Excerpt from Difficulties in Computing Civil, Death Rates for 1918: With Especial Reference to Epidemic Influenza Various conditions are known to have existed in 1918 which caused an abnormal distribution of population in the various demographic groups commonly employed in vital statistics. Mention has been made already of them, such as (1) the withdrawal of over 4,000,000 males of certain ages from civil life for the armed forces in the War with Germany, a condition which affected some localities more than others and which varied in its influence upon the sex and age composition of the population at different times during the period beginning April, 1917; (2) the movement of population, particularly of persons of industrial ages, to localities and areas where war industries were concentrated; (3) changes in the occupational status of the population, which were particularly important from the points of view of sex and age, since the number of women and the number of men above the usual wage-earning age were increased in some occupations; (4) a well-defined movement of negroes of certain ages from southern into northern and eastern States. It is obvious that, in expressing mortality rates and other ratios for the period in question, some account should be taken of these factors. Their effects are too important to be ignored or to be dismissed with the comforting guess that the more or less conflicting changes had \
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