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Occupation and cancer - European Trade Union Institute (ETUI)

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Acta Oncol Downloaded from informahealthcare.com by 212.35.100.66 on 04/06/11<br />

For personal use only.<br />

0.16 0.46) among the physicians, followed by artistic<br />

workers, printers <strong>and</strong> waiters.<br />

In women, there were no occupations with systematically<br />

increased or decreased SIRs in all countries<br />

(Table 5). Female farmers had a significantly<br />

decreased risk of lip <strong>cancer</strong> in Denmark <strong>and</strong><br />

Sweden.<br />

Comment. All eight occupations with significant<br />

SIRs 1.20 in males include a major part of outdoor<br />

work, while the lowest SIRs are in indoor occupations.<br />

This fits well with earlier findings indicating<br />

/ 100 000<br />

8<br />

6<br />

4<br />

2<br />

0<br />

Men<br />

Denmark<br />

Finl<strong>and</strong><br />

Icel<strong>and</strong><br />

Norway<br />

Sweden<br />

1945 1960 1975 1990 2005<br />

that men living in rural areas <strong>and</strong> in particular those<br />

employed in outdoor occupations such as fishermen<br />

<strong>and</strong> farmers have the highest risk of lip <strong>cancer</strong><br />

[50 52]. The risk has been ascribed to exposure to<br />

sunlight <strong>and</strong> smoking [53]. The pattern of high-risk<br />

occupations of lip <strong>cancer</strong> is very different from<br />

/ 100 000<br />

the respective pattern of lung <strong>cancer</strong>. This is in<br />

accordance with the observation that smoking is a<br />

major risk factor of lip <strong>cancer</strong> only in interaction<br />

with outdoor exposure [53]. The strong decrease in<br />

lip <strong>cancer</strong> incidence rates is in accordance with the<br />

decreasing proportion of farmers in the Nordic<br />

countries.<br />

The small numbers of female lip <strong>cancer</strong> do not<br />

allow conclusions of occupational pattern among<br />

them. The low SIRs among female farmers indicate<br />

that women on farms have had less outdoor work<br />

than men.<br />

8<br />

6<br />

4<br />

2<br />

0<br />

Women<br />

Denmark<br />

Finl<strong>and</strong><br />

Icel<strong>and</strong><br />

Norway<br />

Sweden<br />

1945 1960 1975 1990 2005<br />

Figure 12. Age st<strong>and</strong>ardised (World) incidence rates for lip <strong>cancer</strong> 1943 2005, by country <strong>and</strong> gender. Modified from NORDCAN [49].<br />

/ 100 000<br />

2<br />

1<br />

Denmark<br />

Finl<strong>and</strong><br />

Icel<strong>and</strong><br />

Norway<br />

Sweden<br />

Men<br />

0<br />

1945 1960 1975 1990 2005<br />

/ 100 000<br />

Tongue <strong>cancer</strong><br />

Cancer of the tongue is rare, but incidence rates in<br />

men have approximately doubled from 1960 to 2003<br />

(Figure 13). Rates were lowest in Icel<strong>and</strong> <strong>and</strong>,<br />

during the last 10 years, highest in Denmark. Among<br />

women, rates are approximately half of that among<br />

2<br />

1<br />

<strong>Occupation</strong> <strong>and</strong> <strong>cancer</strong> in Nordic countries 659<br />

Denmark<br />

Finl<strong>and</strong><br />

Icel<strong>and</strong><br />

Norway<br />

Sweden<br />

Women<br />

0<br />

1945 1960 1975 1990 2005<br />

Figure 13. Age st<strong>and</strong>ardised (World) incidence rates for <strong>cancer</strong> of the tongue 1943 2005, by country <strong>and</strong> gender. Modified from<br />

NORDCAN [49].

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