Table 6

Effects of the distribution of subjects per job on the performance of population specific JEM (resampling (two series of 100 draws) performed in men from the French survey)

First series Second series
Men (mean (SD))849 (6.4)3171 (4.1)
Different jobs (mean (SD))110 (5.0)184 (3.6)
Self reported exposure (mean (SD)) (%)25.5 (1.5)25.8 (0.5)
Men in each category of job (mean (SD)) (%):
 <1040.2 (2.6)14.4 (0.8)
 10–1917.9 (3.2)19.1 (1.4)
 20–4925.9 (5.2)20.4 (1.8)
 ⩾5016.0 (4.4)46.0 (1.5)
Significant positive associations (between exposure and FEV1) out of 100 draws (n):
 Self reported exposure 6 8
 Pp JEM1661
 P10–50 JEM1563