# Table 2 Distribution of occupations held by male subjects exposed to wood dust in two distinct periods

Study I   Study II
All jobs Jobs before 1960 Jobs after 1960 All jobs Jobs before 1960 Jobs after 1960
n = 1017* n = 766 n = 539 n = 889 n = 494 n = 569
Occupation title %** % %   % %
Carpenters and related occupations 16,7 15.9 21.5 11.6 9.3 14.1
Occupations in labouring and other elemental work, and other construction trades 13.3 11.7 16.1 19.7 17.5 23.4
Timber cutting and related occupations 10,7 13.8 4.5 9.9 16.4 3.3
Cabinet and wood furniture makers 7.1 6.4 6.9 4.7 4.3 4.7
Painters, paperhangers and related occupations 3,8 4.0 4.3 1,5 1.0 1.9
General workers, farm 3,2 4.3 0.6 1,3 2.4 0.2
Construction electricians and repair workers 2,5 2.9 2.6 4,2 3.8 5.1
Truck drivers 2,1 2.2 1.1 2,9 2.8 3.0
Brick and stone masons and tile setters 1,7 2.2 1.1 1,2 1.6 1.2
Janitors, charworkers and cleaners 1,5 0.5 2.6 3,3 1.4 4.2
Wood processing, except paper pulp 1.3 1.4 0.9 2,2 3.0 1.2
Pipefitting, plumbing and related occupations 0.9 1.0 0.7 3,1 4.3 3.0
All other jobs with wood dust exposure 35.2 33.7 37.1 34,4 32.2 34.7
1. *Numbers of jobs with exposure to wood dust. Each subject may have been exposed in more than one job. Jobs that overlapped 1960 were included in both time periods; thus the sum of numbers under the two time periods exceeds the total number of jobs.
2. **Percentage of subjects with wood dust exposure who were in each listed occupation.