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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

London County Council 1908

[Report of the Medical Officer of Health for London County Council]

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35
The following tables have been prepared for the purpose of enabling the age incidence of notified
cases of diphtheria in recent years to be compared with that of the cases in the period 1893-5. When
the corrected figures of 1906-8 are compared with those of that period, it will be seen that the ages
5— and under have not shared in the decline to the same extent as the older ages, and this has
been most marked at ages 4— and 5— in both males and females.

Table: Diphtheria. Case-rates per100,000living, at certain ages, 1893-1908.Males

Diphtheria. Case-rates per100,000living, at certain ages, 1893-1908.

Males

Period.0-1-2-3-4-5-10-15-20-25-35-45-55 +All ages.
1893-52958409331,1701,11467527815911493442413264
1896-19002688491,0911,3491,370792298142945928137277
1901-52136568511,0031,0375692059561402075190
1906-82026427039058735521796745291864169

Table: Females.

Females.

Period.0-1-2-3-4-5-10-15-20-25-35-45-55 +All ages.
1893-52267089041,1801,166776364216176144805020289
1896-19002207509961,2701,435954391179135113573110297
1901-51465577639411,076692257109856333156195
1906-816651265885996967623584675122124177

Table: Comparative case-rates(1893-5=1,000for each age).(These figures are corrected for difference in the age and sex constitution of the population, and the number of cases annually has been assumed to be constant).Males

Comparative case-rates(1893-5=1,000for each age).

(These figures are corrected for difference in the age and sex constitution of the population, and the number of cases annually has been assumed to be constant).

Males

Period.0-1-2-3-4-5-10-15-20-25-35-45-55 +
1893-51,0001,0001,0001,0001,0001,0001,0001,0001,00010001,0001,0001,000
1896-19008539541,1011,0821,1581,1041,018866801618621533504
1901-59561,0271,2051,1231,2101,090951766703556592424461
1906-89881,1161,1021,1211,1391,191944633588461620395435

Table: Females.

Females.

Period.0-1-2-3-4-5-10-15-20-25-35-45-55 +
1893-51,0001,0001,0001,0001,0001,0001,0001,0001,0001,0001,0001,0001,000
1896-19009371,0141,0631,0311,1841,182 w1,037815752765701610508
1901-59371,1001,1971,1061,2801,241976698673611588431422
1906-81,1371,1011,1141,1121,2711,336995608598549434375310

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Diphtheria and Elementary Schools.
In connection with the question of the reduction in the prevalence of the disease
among persons of school age during the summer holiday when the schools are closed it has
been thought well to include, as in previous reports, the following table. The summer holiday
of the schools of the London County Council began on Thursday, the 23rd July, i.e., the
latter part of the 30th week, and the schools re-opened on Monday, the 24th August, i.e., at
the beginning of the 35th week. If the number of cases in the four weeks preceding and the
four weeks subsequent to the weeks most subject to holiday influence be compared, the following
results are obtained for the age periods of 0—3, 3—13, and 13 years and upwards.