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46
mortality in childhood.
OTHER DISEASES.
Less than usual can be written about these diseases, as detailed information is wanting as to
the populations.
Influenza.—There were 25 deaths ascribed to this cause (14 of males and 11 of females),
being 6 less than the number (31) recorded in 1910 and 47 less than that (72) of 1909. The
mortality rate was 0.17 per 1,000 persons, the average annual rate for 1906-10 having been 0.35.
Respiratory Diseases.—The deaths from bronchitis numbered 154 (80 of males, 74 of
females), and were 12 less than the number (168) recorded in 1910; those from the pneumonias,
114 (61 males, 53 females), or 28 less than in the previous year; and those from "other
respiratory diseases," 18 (10 males, 8 females). The total mortality from all forms of respiratory
disease was 1.99, but for the purpose of comparison with other years the total mortality from
bronchitis and the pneumonias is used. The mortality from those forms was 1.7 (average, 2'25)
last year, 1'08 from bronchitis (average, 1'23) and 0 79 from the pneumonias (average, l.02).
Alcoholism.--There were 12 deaths from acute and chronic alcoholism (no longer distinguished
in the schedules), 5 of males and 7 of females, equal to a mortality of 0.08 per 1,000
(average, 1906-10, 0.07), and 15 from cirrhosis of the liver, 8 males and 7 females, equal to a
mortality of 0.10 (average, 1906-10, 0.12). Of the 15 deaths from cirrhosis, 13 (males 7,
females 6) were known to be due to alcoholic excess. As, however, in previous reports all cases
of cirrhosis have been included in calculations of the total mortality from alcoholism, that
practice will be adhered to. The total number of deaths from such excess was, therefore, 27,
13 of males and 14 of females, and the mortality 0.18, the average for the preceding five years
having been 0.19.
Suicide.—Eleven (11) deaths were due to this cause, 8 of males and 3 of females. The
mortality was 0.07, or 0.03 less than the average (0.10).
MORTALITY IN CHILDHOOD.
This subject will be dealt with in two sections, viz., Mortality at ages under one year
(Infantile Mortality), and that at ages 1—5 years (Mortality in Young Children). The former
section will include some account of the work done in connection with "Health Visiting."
Infantile Mortality.
Owing to the manner in which the records of births and deaths are received from out-lying
areas, four values are obtained for the rate of infantile mortality, all except one being used for
comparative purposes. Unless some definite name be given to each value, it will be hopeless
to attempt to deal intelligibly with so many rates. They will, therefore, be considered with the
following designations:—
Crude rate.—That obtained from the births and deaths registered in the Borough
without any corrections for non-residents or out-lying returns.
Nett rate.—The deaths are corrected for non-residents and for out-lying deaths of
residents, the births are uncorrected.
Corrected rate. — The births and deaths are corrected for non-residents and
out-lying births and deaths belonging to the Borough (Departmental corrections).
Fully corrected rate.—The corrections of births and deaths are those obtained by
the use of the " transfer returns " issued annually by the Registrar-General. This rate
can be obtained for the Borough as a whole only.