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Diagram Showing Deaths from Pneumonia, by Ages, Year Ending
CHART No. 12.
How this disease affects the extremes of life is made apparent by the chart, 568, or 25.8 per cent. of the total number, were under 2 years, and 683, or 31.1 per cent., were 55 years old or
The monthly incidence of pneumonia appears plainly in Chart No. 13, the short columns appearing in June, July, August, Sep
tember and October, and the long columns at the extremes of the Vear. Diagram Showing Deaths from Pneumonia. by Jonths. Year Ending
December, 1903. 500
CHART No. 13.
Total tuberculosis deaths, all forms, 4,412, rate 174.3. Pulnary tuberculosis, deaths 3,864, rate 153.5; other forms 548,
8. In the preceding year the figures were: All forms,
4,107, rate 174.2. Pulmonary tuberculosis, deatlis 3,900, rate 154.9; other forms 507, rate 19.3.
By Months.—The monthly study shows that March, April and December present the highest number of deaths and August and October the lowest. (hart No. 14 shows, in graphic form, the influence of months on deaths from tuberculosis.
Diagram Showing Deaths from Pulmonary Tuberculosis, by Months, Year
Ending December, 1903.
Chart No. 15, following, shows the monthly incidence of pulmonary tuberculosis deaths and makes comparison with the average for the last four years.
Average deaths.per month for four years, 1900-1903.
Deaths per month for the year 1903.
The following table gives the average for four years, presenting the figures for the points contained in the above chart. The ratio are per 100,000.
By Ages.--The deaths from tuberculosis by ages furnish some facts of great economic interest. In the first years of life up to the 10 to 15 period, no deaths from tuberculosis of larynx are of record, but for every year of age to 90 and over, pulmonary, abdominal and meningeal tuberculosis, claim victims, except in the case of the last named form none were reported between 65 and 80. As one death from this form occurred at 90, it is not to be inferred that 65 to 80 has any immunity. The critical period begins at 15, rises to maximum at 25, and quickly declines to 40, then the decline becomes gradual and quite even. Chart No. 16 shows this very plainly.