London's Pulse: Medical Officer of Health reports 1848-1972

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London County Council 1927

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

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166
Discarding the doubtful cases (two of them probably instances of sporadic deafbirth),
there remain 143 cases in which the cause of deafness was undoubted or
could reasonably be surmised. It is to be noted that the relation of the congenital
cases to the acquired are 28 and 72 per cent. respectively, showing that superior
methods of investigation have changed the statistics of some half century ago and
fulfilled the prophecy of Mygind that in course of time it would be found that congenital
cases formed less than, instead of more than, half the total number. The
congenital cases were:—
Boys. Girls. Totals. Per cent.
True hereditary deaf-birth 8 6 14 35.0
Sporadic deaf-birth 13 13 26 65.0
21 19 40

Analysis of the acquired cases gives the following results:—

A.—Meningitis—Boys.Girls.Totals.Per cent.
1. Epidemic cerebrospinal123
2. Influenzal11
3. Causes not ascertained4158.8
B.—Infectious diseases—
1. Scarlet fever3710
2. Measles7411
3. Diphtheria123
4. Pertussis22
5. Influenza11
6. Mumps22
7. Encephalitis lethargica11
290
C.—Other infectious diseases—
1. Pneumonia22
2. Chorea11
3. Congenital syphilis123
5.8
D.—Primary middle ear disease—
1. Middle ear catarrh111930
2. Middle ear suppuration111223
3. Middle ear suppuration, results of11
52.4
E.—Injuries444.0

It may be noted that there are fewer cases this year to be ascribed to nervous
diseases and more in which deafness has been a sequel of infectious disease.
Blind
children.

The following table shows the number of children certified as blind during the decade commencing with 1918:—

1918.1919.1920.1921.1922.1923.1924.1925.1926.1927.
69837489885984703335

dness has been attributed. The particulars are set out below:—

(1) Injury or destruction (surface)—1922-3.1924-5.1926-7.
(a) Ophthalmia neonatorum122010
(6) Phlyctenular keratitis9138
(2) Inflammation within the eyeball or optic nerve— (a) Interstitial keratitis and iritis27257
(6) Disseminated choroiditis and optic atrophy221812
(c) Injuries14
(d) Buphthalmia or congenital glaucoma341
(e) Macular defects21
(f) Congenital nystagmus1896
(g) Double detachment of retina1