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London County Council 1918

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

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Table:

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Certified cause of death.	1918 Summer epidemic.		1918 Autumn epidemic.		1919 Winter epidemic.
Certified cause of death.	Deaths.	per cent.	Deaths.	per cent.	Deaths.	per cent.
Influenza (actual)	894	57	11,336	72	3,278	56
Pneumonia (excess)	534	22	2,181	14	1,014	18
Bronchitis (excess)	111	7	991	6	949	16
Phthisis (excess)	152	10	601	4	246	4
Heart Diseases (excess)	59	4	558	4	368	6
Total	1,750	100	15,667	100	5,855	100

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The higher proportion of deaths from bronchitis and heart diseases shown in the winter epidemic
does not necessarily represent any increase in complications of these diseases in influenza cases, but
probably results directly from the cold weather which prevailed in the early weeks of the epidemic. A
considerable number of deaths from these diseases and from pneumonia would have occurred in this
period independently of the epidemic.
Age
incidence of
death.

Table: The actual and relative incidence of death at various ages certified as due to influenza in the periods of marked epidemic mortality were as follows:—

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The actual and relative incidence of death at various ages certified as due to influenza in the periods of marked epidemic mortality were as follows:—

	All ages.	0	1	2	5	10	15	20	25	35	45	55	65	75
Deatds registered at each age	Sum mer, 1918.
	966	16	12	21	27	49	83	100	212	121	122	97	72	34
	Aut umn. 1918.
	11,663	228	359	839	620	446	818	1,031	2,992	1,420	1,150	766	713	281
	Winter. 1919
	3,279	87	61	110	65	44	172	225	792	415	430	384	326	168
Deatds at each age per 1,000 at all ages	Summer, 1918.
	1,000	17	12	22	28	5i	86	104	219	125	126	100	75	35
	Aut umn. 1918.
	1,000	20	31	72	53	38	70	88	256	122	99	66	61	24
	Winter. 1919.
	1,000	26	19	34	20	13	52	69	242	127	131	117	99	51

Table: A general comparison of the relative age and sex incidence in London and a group of large towns of England and Wales in the summer and autumn epidemics is shown in the following table:—

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A general comparison of the relative age and sex incidence in London and a group of large towns of England and Wales in the summer and autumn epidemics is shown in the following table:—

	Metropolitan Boroughs. 1				Large Towns.*				London County.
Age Group.	Summer Epidemic.		Autumn Epidemic.		Summer Epidemic.		Autumn Epidemic.		3rd Quarter, 1918.		4th Quarter, 1918.
	m.	f.	m.	f.	m.	f.	m.	f.	m.	f.	m.	f.
0—5	6	4	16	12	7	5	19	16	6	3	14	10
5—15	5	8	11	9	8	7	11	11	9	9	10	9
15—25	18	17	11	18	13	18	12	16	15	23	12	19
25—45	26	49	31	41	33	41	33	35	28	38	34	40
45—65	27	17	21	13	29	21	18	15	28	17	20	14
65 +	18	5	10	7	10	8	7	7	14	10	10	8
All ages	100	100	100	100	100	100	100	100	100	100	100	100

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* The Metropolitan Boroughs comprise Paddington, St. Pancras, Islington, Stoke Newington, Holborn, City
of London, Shoreditch, Bethnal Green and Deptford. The large towns are Cardiff, Huddersfield, Leeds, Liverpool,
Manchester, Middlesbrough, Newcastle-on-Tyne, Rhondda, Salford, Stoke-on-Trent and Swansea.

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London County Council 1918

Table:

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Table: The actual and relative incidence of death at various ages certified as due to influenza in the periods of marked epidemic mortality were as follows:—

Table: A general comparison of the relative age and sex incidence in London and a group of large towns of England and Wales in the summer and autumn epidemics is shown in the following table:—

Text