Table 2 (a) Cross-table between occupational exposure to inhalable noxious substances according to self-report in the questionnaire and the Job-Exposure matrix (JEM), n = 4811. (b) comparison of occupational exposure assessment: Self-Reported versus Job-Exposure matrix by occupational requirement level.

From: Comparison of self-reported and job-exposure matrix assessed workplace inhalant exposures and their association with obstructive airways disease

(a)

 

JEM exposure

 
 

Exposed

Not exposed

Total self-reported

Exposed

591 (12.3%)

462 (9.6%)

1053 (21.9%)

Not exposed

877 (18.2%)

2881 (59.9%)

3758 (78.1%)

Total JEM

1468 (30.5%)

3343 (69.5%)

4811 (100%)

Cohen‘s Kappa 0.29

(b)

Skill Level

(low to high)

Self-Reported

JEM

Cohen’s Kappa

n

exposed

n not exposed

n

exposed

n not exposed

Category 1

30

77

77

30

0.17

Category 2

502

1320

719

1103

0.33

Category 3

242

794

300

736

0.33

Category 4

279

1567

372

1474

0.14