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24
Seasonal Mortality.—The highest mortality occurred
during the first and last quarters of the year, the death-rates
from all causes being 15.4 and 11.7 per 1,000 respectively. The
lowest death-rate was 8.4 for the third quarter.
Chart A shows deaths from all causes recorded weekly
and the seasonal effect with regard to Infantile Diarrhoea and
diseases of the Respiratory Group.
Table 10 shows the total deaths in 12 classes registered in
each quarter, from which it will be seen that deaths from
diseases of the respiratory organs, were the highest during
the first and second quarters of the year and infective diseases
during the first quarter.
ZYMOTIC DEATH RATE.
The Zymotic death rate is calculated upon the total
deaths occurring at all ages from the principal infectious diseases,
viz.:—Small-Pox, Measles, Diphtheria, Scarlet, Typhus
and Typhoid Fevers, Whooping Cough, Dysentery, Epidemic
Diarrhoea and Epidemic Enteritis.
For the year under review, the zymotic death rate for
Lewisham amounted to 0.71 per 1,000 persons, showing a
decrease of 0.80 over that of the previous year. The rate
compares favourably with the rates 1.42 for the County of
London, 1.60 for the 76 Great Towns, and 1.26 for England and
Wales during the same period. These rates also show decreases
of 0.50, 0.64, and 0.47 per 1,000 respectively over the rates for
1906.
Lewisham possesses the lowest zymotic rate of the 10
South Metropolitan Boroughs. Only Hampstead has a lower rate
in the whole of London.