Dietary tin intake and association with canned food consumption in Japanese preschool children

Table 4 Sn in urine (Sn-U) in selected children by canned food consumption

	Sn-D (μg/day)			Sn-U_ob (μg/l)			Sn-U_cr (μg/g cr)			Sn-U_sg (μg/l)
	Total case	Consumers	Non-consumers	Total case	Consumers	Non-consumers	Total case	Consumers	Non-consumers	Total case	Consumers	Non-consumers
No. of cases	217	97	120	217	97	120	217	97	120	217	97	120
GM	9.86	34.11	3.61	2.69	2.95	2.49	3.83	4.18	3.56	1.92	2.15	1.76
GSD	10.35	13.61	4.32	3.55	3.37	3.71	3.59	3.38	3.77	3.63	3.41	3.80
Minimum	<LOD	<LOD	<LOD	<LOD	<LOD	<LOD
Median	3.5	18.9	2.6	2.4	2.5	2.3	3.7	4.0	3.5	1.7	2.0	1.6
Maximum	3254.8	3254.8	1113.6	185.9	49.4	185.9	250.6	79.2	250.6	198.3	49.4	198.3

No significant difference (p > 0.10) was detected between consumers and non-consumers in urine by unpaired t-test (after logarithmic conversion), as well as Mann–Whitney test irrespective of correction of urine for creatinine (U_cr), urine specific gravity (1.016) (U_sg) or none (i.e., as observed; U_ob). Difference in Sn-D was significant (p < 0.01) by Mann–Whitney test
217 children for whom Sn-U, CR, SG were available in urine

ISSN: 1347-4715