194 Correlation of Cancer and Diabetes Deathrates 
DiAGEAM III. Cancer and Diabetes. Corrected Male Deathrates showing scatter of ■ 
pairs of occurrences in the same years. 
120-1 — — 1 
115- 
110- 
105- 
100- 
95- 
90 
85- 
i 80 
S 75 
•S 70 
«w 
c| 65 
J 60 
rO 
i| 55 
50 
45 
40- 
35- 
30 
'92o 
o'8 7 ^'91 
o'9 3 
0'94 
o'86 
o'89 
0^83 
o'8l 
'69o o o'7<l 
o'64 'VS 
'66. O'70 
650«gp'68 
'67 
0'62 
o'61 
,gO°-63 
o'82 
'7 7 0o'7 8 
75o 079 
O'80 
'lOO 
o'13 
'12 
o'09 
'08O o'll 
980 , 
o'95 0 97 
o'96 
'05 0 o'06 
o'Ol o'0 7 
o'04 
j'99 
o'02 
G'03 
200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 
Cancer. Corrected DeatJirate per Million 
The diagram indicates an apparent highly correlated change. 
It should be noted, however, that Newsholme and King* conclude that the 
increase of •cancer is apparent only and due to improvement in diagnosis and 
more careful certification of causes of death. Whether there has been a real 
increase in diabetes is a question that these authors consider to be undecided. 
It is difficult, however, in the case of England and Wales to beheve that the 
increase in the corrected deathrates for both cancer and diabetes that has gone 
on continuously since 1900 can have anything to do with increased accuracy 
* R. 8. Proc. Vol. Liv. p. 228 (1893). An examination of our Diagram I shows that the increase of 
the corrected cancer deathrate from 1873 to 1893 was practically the same as from 1893 to 1913. If 
improved diagnosis is the source of the increased cancer rate it is certainly remarkable that the 
improvement should have been so uniform for the space of forty years. 
