Table 5

Main statistical parameters for the third phase of the study: urinary NMA and DMA, from the beginning of the shift on the first day to the beginning of the shift on the third day

Statistical parameters	First day at work		Second day at work		Third day
Statistical parameters	Start shift	End shift	Start shift	End shift	Start shift
NMA (mg/g creat.)
Count	17	14	13	14	13
Average	2.5	10.8	4.7	17.6	4.9
Median	1.5	10.0	3.5	17.2	4.7
Minimum	1.5	2.7	1.5	7.1	2.7
Maximum	10.3	21.9	11.7	28.2	7.1
DMA (mg/l)
Count	17	15	17	17	16
Average	0.22	0.73	0.35	1.02	0.19
Median	0.20	0.61	0.34	1.06	0.17
Minimum	0.09	0.26	0.08	0.27	0.07
Maximum	0.53	1.97	0.97	2.15	0.34