London's Pulse: Medical Officer of Health reports 1848-1972
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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
Chelsea 1930
Annual report of the Medical Officer of Health for Chelsea, 1930
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70
Return Cases.—No "return" case of the disease occurred during
he year.
Table No. 41.
| year. | Cases Notified. | Percentage of Removals. | Deaths | Case Mortality Rate. | Percentage of cases of School age (3-13 years) | Month of greatest prevalence. | Bacterioscopic Diagnosis, Lister Institute. | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Specimens submitted | Positive | Percentage Positive. | Negative. | Percentage Negative. | |||||||
| 1926 | 207 | 98 | 6 | 2.9 | 55 | Mar. | 317 | 33 | 10.4 | 284 | 89.6 |
| 1927 | 127 | 96 | 4 | 3.1 | 50 | Nov. | 418 | 39 | 9.3 | 379 | 90.7 |
| 1928 | 155 | 99 | 4 | 2.6 | 54 | Mar. | 360 | 39 | 10.8 | 321 | 89.2 |
| 1929 | 148 | 99 | 3 | 2.3 | 53 | Apl. | 370 | 39 | 10.5 | 331 | 89.5 |
| 1930 | 118 | 99 | 5 | 4.6 | 53 | Jan. | 364 | 36 | 10.0 | 328 | 90.0 |
It will be observed that there was a decrease in the number of cases
notified in 1930. The percentage of removals to the L.C.C. Hospitals
Was high, and the case mortality rate was higher than that for 1929.
Information was received from the L.C.C. that 9 of the cases sent
to Hospital in the course of the year proved not to be suffering from
diphtheria.
Of the 118 cases notified, 44 occurred in Stanley Ward, 20 in Church
^Vard, 36 in Cheyne Ward, 10 in Hans Town Ward, and 8 in Royal
hospital Ward.
The following table shows the average annual case rate, case mortality
ra-te, and percentage of cases removed to hospital in each of the quinquennial
periods since 1911.
Table No. 42.
| Quinquennial Periods. | Average Annual case-rate per 1,000 population. | Average Annual case-mortality rate. | Average Annual percentage of cases removed to hospital. |
|---|---|---|---|
| 1911-15 | 1.24 | 5.8 | 89 |
| 1916-20 | 1.35 | 8.9 | 92 |
| 1921-25 | 1.81 | 7.2 | 93 |
| 1926-30 | 2.46 | 3.1 | 98 |