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TABLE 7
Mesothelioma tumors in Devonport
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Dockyard, England, 1964-1973*
Asbestosis (disability)
No. %
16 10.3 36 23.1 15 9.6
4 2.6 15 9.6 11 7.1 6 3.8
6 3.2 48 30.8 156
Occupation
Sprayers Laggars Shipwrights Boilermakers Engine fitters Electricians Caulkers-R iveters Welders All others
Mesothelioma (deaths)
No. '
i 1.6
i&
9 16.4 8 14.6
5
3 5.5 3 6.5 11 20.0 55
* Harrow, P.G., Envlr. Res. 11:261*267,1976.
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TABLE 9 X-ray abnormalities among workers employed in shipbuilding and ship repair:
TYPE OF ABNORMALITY
Any abnormality All parenchyma
Parenchyma only Parenchyma 81 pleura All pleura Pleura only
Less than 20 years from onset of shipyard em ployment (636)
Number %
274 43.1 188 29.6 127 20.0 61 9.6 147 23.1
86 13.6
20 or more years from onset of shipyard em ployment (364)
Total 'V
Numbar X Numbar %'k-.
185 50.8 459 46.9
134 36.8 322 32.? 1 77 21.1 204 20.4
57 15.7 118 11.8
108 29.7 265 25.6 :
51
14.0 137
13.7 ;
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CA-A CANCER JOURNAL FOR CLINICIANS
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TABLE 8 Mortality experience of 429 shipyard workers in Barrow, England
with pleural plaques on x-ny (1964-1971) compared with control men in Carlisle, without pleural plaques
Tracing to December31,1976
Plaques
1 Controls
Alive Dead Not traced
Causes of death
Lung cancer Mesothelioma G. 1. cancer . All other cancer Ischemic heart disease Chronic bronchitis All other Muses
299 127 ( 30%)
3(0.7%) : 429 . .
Ptncues
19 23
7. 13 34 9 22
347 74 (17.2%) 81 1,9%)
429
Controls -1 ' ' V; '
4' 0 ' 4/ ' . 7 ' 29 9 21
. TABLE 10 X-Ray almonnalitiejaoii^ig (workers employed
in shipbuildlng^idship repair:
analysis by duration f*om onset of work
' '
Onset of woffc :
'Vtv '
<1950 1961-1955 1956-1960 > 1961
;
.
j Total
166 198 333 303 1000
NORMAL - : C ->7: : :
' % ..
81 98 174 : 188 641
48.8 49.6 62,2 62.0 54.1
ABNORMAL
No. .' %
85. 100 159 115 459
61.2 60.6 47.8 38.0
VOL28.NO. 2 MARCHfAPRIL 1978
fl&Ol 6927