Duration of exposure to follow up survey (y) | CS2 concentration during the study period* (ppm) | TTCA concentration during the study period* † (mg/g creatinine) | |||||||
---|---|---|---|---|---|---|---|---|---|
n | Mean | SD | n | Mean | SD | n | Mean | SD | |
*Geometric mean and GSD. | |||||||||
†TTCA concentration for H′, MH′, ML′, and L′ groups shows the concentration in 1992 alone. | |||||||||
‡Quartile classified by mean TTCA concentration over 6 years. | |||||||||
§Quartile classified by TTCA concentration in 1992. | |||||||||
¶There was one missing value. | |||||||||
All exposed | 217 | 19.6 | 8.0 | 216¶ | 4.87 | 1.81 | 216¶ | 1.60 | 1.91 |
Spinning or refining | 165 | 19.9 | 8.1 | 165 | 5.81 | 1.64 | 165 | 1.89 | 1.80 |
Other than spinning or refined | 52 | 18.7 | 7.7 | 51 | 2.74 | 1.68 | 51 | 0.93 | 1.71 |
H‡ | 54 | 18.3 | 7.9 | 54 | 8.10 | 1.27 | 54 | 3.53 | 1.31 |
MH | 53 | 21.1 | 8.0 | 53 | 6.20 | 1.30 | 53 | 2.02 | 1.13 |
ML | 55 | 20.0 | 7.4 | 55 | 4.54 | 1.54 | 55 | 1.35 | 1.15 |
L | 55 | 19.0 | 8.7 | 54 | 2.47 | 1.76 | 54 | 0.68 | 1.46 |
H′§ | 54 | 19.9 | 8.5 | – | – | – | 54 | 7.21 | 1.22 |
MH′ | 54 | 20.6 | 7.4 | – | – | – | 54 | 3.94 | 1.21 |
ML′ | 54 | 19.5 | 7.7 | – | – | – | 54 | 2.04 | 1.24 |
L′ | 55 | 18.5 | 8.6 | – | – | – | 53 | 0.58 | 1.86 |