Table 1

 Concentration (ng/l) and basic statistics relating to urinary Pt in city police officers

BoS and EoS*BoSEoSFemales (BoS and EoS*)Males (BoS and EoS*)
BoS, beginning of shift; EoS, end of shift.
*Data refer to collections at the beginning and the end of shift.
†Police engaged in office work (maximum number of “useful values”: 49).
‡Police engaged in traffic control (maximum number of “useful values”: 94).
Control subjects†
Mean4.564.524.644.095.77
SD2.842.373.282.733.68
5–95% range0.55–10.100.87–9.600.53–10.790.40–10.180.64–15.16
Exposed subjects
Mean4.454.434.634.635.04
SD2.422.342.472.283.38
5–95% range0.81–8.911.09–9.050.91–9.641.09–9.490.74–11.75