Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Barking]
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Age. | 1916. | 1917. | 1918. | 1919. |
---|---|---|---|---|
21 | — | 3 | 2 | — |
22 | 1 | — | — | 2 |
23 | 1 | — | — | 1 |
24 | 1 | 1 | — | 1 |
25 | — | 1 | — | 1 |
26 | — | — | — | — |
27 | — | 2 | — | 1 |
28 | — | — | — | — |
29 | — | - | - | - |
30 | — | 2 | — | 1 |
31 | 1 | — | — | — |
32 | — | — | — | — |
33 | 1 | 1 | — | |
34 | 1 | — | — | — |
35 | 2 | — | 1 | — |
36 | 1 | — | — | — |
37 | — | — | — | — |
38 | 1 | — | — | — |
39 | — | — | — | 1 |
Over 40 | 2 | 1 | — | — |
Totals | 320 | 924 | 534 | 369 |
The standard deviations are:—
1916. 1917. 1918. 1919.
Years 4.24+ - .113 2.68+ - .04 22.11 + - .044 4 55+ - .11
The mean age of attack:—
7.08+ - .267 5.05+ - .112 5.18+ — .151 6.15+ - .250
Number of second attacks in first year of notification, 40%
„ „ „ second „ 22%
„ „ „ third „ 6%.
„ „ „ fourth „ 14%.