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A comparison hao been rnado betwoon tho age-opcclflc ratoa shown
ll 1
. In Table IS, and tboaa for the cohort, shown la Table (/. An averago 61 the
.1)54 end 1955 into* lot the Province has been used, alnce the 1955 figure
i higher and may have been exceptional,
I
r
\" Thla comparison, summarized in Table VS', show# that the observed
. r* number of deaths in our sample la not significantly greater than the expected
I
number of deaths, baaed on the average of tha 1954 and 1955 figures for the
Province. It Is true that, in the case of the age group of 55 and over, the
five deaths provide a figure which Is almost significant at the 95?. level.
However. It ahould be noted that this number tncludoa one of the suspected
but uaproved csses'provlously referred to. Furthermore, it Is rathor likely
that the rate for the general population la understated la this age group, for
lbs obvious reason that tha exact caueo of death In the very old Is not a matter
of the same Intensity of Interest as U Is In younger persons. . .
TABUS 16
Age Oroup
Comparison of the Actual and Expected Number of
Lung_Cancer Deaths by Ano Among, Asbestos Miners
Province
ExpoctodT
ObeervedNo.
Total Specified Primary No. of 1 Hu. :of
of Doaths
Hate per 100, 000
Minors
Dcmhn
Proved lotal
10*44 49*54 95-64 65f Unknown
1.8 24.5
67.6 89.3
*
3901 1124
615 315
3
0?
2 2 ... 2
m
11 13 33 45 00
e Actually .4
4 The expoctod number la baoed on tho average of the 1954 and 1955 ge*ipeelflc rates for tho ProvlDco of Ouebec,
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