Variable with levels
|
n
|
RR (95% CI) separate analysis8-152
|
RR (95% CI) simultaneous analysis8-153
|
Cumulative exposure to MBT (mg.μ-3y): |
None | 21 | 1.0 | | 1.0 | |
0.01–21.24 | 5 | 2.968-150
| (1.11 to 7.86) | 2.24 | (0.76 to 6.60) |
21.25–63.74 | 3 | 2.50 | (0.74 to 8.38) | 1.46 | (0.38 to 5.63) |
⩾63.75 | 1 | 1.72 | (0.23 to 12.82) | 1.21 | (0.15 to 9.54) |
p Value for trend8-154
| | p=0.06 | | p=0.48 | |
Duration of employment in PBN department (y): |
None | 25 | 1.0 | | 1.0 | |
1–4 | 1 | 1.26 | (0.17 to 9.32) | 0.58 | (0.06 to 5.46) |
⩾5 | 4 | 7.488-160
| (2.60 to 21.52) | 4.358-150
| (1.30 to 14.57) |
p Value for trend8-154
| | p<0.001 | | p=0.03 | |
Duration of employment in aniline department (y): |
None | 23 | 1.0 | | 1.0 | |
1–4 | 2 | 0.85 | (0.20 to 3.61) | 0.61 | (0.14 to 2.76) |
⩾5 | 5 | 2.20 | (0.84 to 5.79) | 1.50 | (0.52 to 4.35) |
p Value for trend8-154
| | p=0.17 | | p>0.50 | |
Duration of employment in o-toluidine department (y): |
None | 27 | 1.0 | | 1.0 | |
1–4 | 2 | 6.738-150
| (1.59 to 28.41) | 5.188-150
| (1.04 to 25.80) |
⩾5 | 1 | 7.658-150
| (1.03 to 56.87) | 2.73 | (0.29 to 25.45) |
p Value for trend8-154
| | p=0.002 | | p=0.31 | |