Table 3c

Comparison between newborns of metal load between subgroups according to the mothers ‘proximal exposure’. The metal load in newborns of different subgroups were compared with each other. Analysis was by multiple quantile regression on median values as linear function of the independent variable, ‘proximal exposure’. For ease in reading the data, the colour yellow indicates that the group in the column on the left in each panel has significantly higher load (p<0.05) than the one in the column on the right in the same panel. If vice versa, the line is enhanced in green colour. Panel A compares exposure subgroups 1 with 3; panel B compares exposure subgroups 1 with 2+3

Newborn
A
Metal	Median exposure 1	95% CI	Median exposure 3	95% CI	Difference	p>\|t\|	95% CI - INF	95% CI -SUP
Al	4.55	3.85 to5.25	5.71	4.79 to6.63	−1.16	0.049	−2.31712	−0.0028796
Fe	26.83	23.32 to 30.34	31.82	27.2 to36.44	−4.99	0.092	−10.78903	0.8090262
Mg	153	145.02 to 160.98	157	146.5 to167.5	-4	0.551	−17.1852	9.185197
Mn	0.3	0.25 to 0.35	0.3	0.24 to0.36	0	1	−0.0769879	0.0769879
Ba	0.4	0.35 to 0.45	0.36	0.3 to0.42	0.04	0.326	−0.0400217	0.1200217
As	0.011	0.01 to 0.01	0.011	0.01 to0.01	0	1	−0.0019135	0.001913 −0.0019135 0.0019135 5
Cd	0.0056	0 to 0.01	0.0053	0 to 0.01	0.0003	0.737	−0.0014518	0.0020518
Co	0.02		0.02		0
Cr	0.12	0.1 to0.14	0.13	0.1 to 0.16	−0.01	0.558	−0.0435074	0.0235074
Cu	7.31	7.02 to 7.6	7.87	7.49 to 8.25	−0.5599999	0.023	−1.042013	−0.0779871
Hg	0.0618	0.05 to 0.07	0.0544	0.04 to0.06	0.0074	0.258	−0.0054336	0.0202336
Ni	0.19	0.16 to 0.22	0.18	0.14 to 0.22	0.01	0.691	−0.0393955	0.0593955
Pb	0.2	0.17 to 0.23	0.22	0.17 to0.27	−0.02	0.499	−0.0780727	0.0380728
Sr	2.82	2.61 to 3.03	3.05	2.78 to3.32	−0.23	0.185	−0.5706677	0.1106676
Ti	0.24	0.2 to 0.28	0.25	0.19 to0.31	−0.01	0.78	−0.080361	0.060361
U	0.0014	0 to 0	0.0014	0 to0	0	1	−0.00055	0.00055
V	0.01	0.01 to 0.01	0.012	0.01 to0.01	−0.002	0.189	−0.0049906	0.0009906
W	0.04	0.03 to 0.05	0.04	0.03 to 0.05	0	1	−0.0115052	0.0115052
Zn	201.73	194.33 to 209.13	205.68	195.92 to 215.44	−3.949997	0.526	−16.19486	8.294866
B
Metal	Median exposure 1	95% CI	Median exposures 2+3	95% CI	Difference	p>\|t\|	95% CI - INF	95% CI -SUP
Al	4.55	3.81 to 5.29	5.98	5.14 to 6.82	−1.43	0.012	−2.549591	−0.3104087
Fe	26.83	23.01 to 30.65	33.11	28.83 to 37.39	−6.280001	0.032	−12.01936	−0.54064
Mg	153	144.43 to 161.57	165	155.39 to 174.61	−12	0.068	−24.87731	0.8773066
Mn	0.3	0.24 to 0.36	0.35	0.29 to 0.41	−0.05	0.242	−0.1338956	0.0338956
Ba	0.4	0.34 to 0.46	0.43	0.37 to0.49	−0.03	0.494	−0.116016	0.056016
As	0.011	0.01 to 0.012	0.012	0.01 to0.014	−0.001	0.356	−0.0031258	0.0011258
Cd	0.0056	0.004 to 0.007	0.0065	0.005 to 0.008	−0.0009	0.337	−0.0027383	0.0009383
Co	0.02		0.02		0
Cr	0.12	0.1 to 0.14	0.14	0.11 to 0.17	−0.02	0.247	−0.0539088	0.0139088
Cu	7.31	7.01 to 7.61	7.97	7.63 to 8.31	−0.6599998	0.004	−1.109277	−0.2107228
Hg	0.0618	0.05 to 0.07	0.052	0.04 to 0.06	0.0098	0.105	−0.002061	0.021661
Ni	0.19	0.16 to 0.22	0.21	0.17 to0.25	−0.02	0.444	−0.0712762	0.0312762
Pb	0.2	0.16 to 0.24	0.26	0.22 to0.3	−0.06	0.03	−0.1143081	−0.0056919
Sr	2.82	2.61 to 3.03	3.33	3.1 to3.56	−0.51	0.001	−0.8236846	−0.1963154
Ti	0.24	0.19 to 0.29	0.29	0.24– to 0.34	−0.05	0.156	−0.1190668	0.0190668
U	0.0014	0.001 to 0.002	0.0019	0.001 to0.002	−0.0005	0.067	−0.0010348	0.0000348
V	0.01	0.008 to 0.012	0.013	0.011 to 0.015	−0.003	0.037	−0.0058153	−0.0001847
W	0.04	0.03 to 0.05	0.05	0.04 to 0.06	−0.01	0.21	−0.0256367	0.0056367
Zn	201.73	194.37 to 209.09	210.16	201.89 to218.43	−8.430008	0.135	−19.50161	2.641593

*Al, aluminium; Fe, iron; Mg, magnesium; Mn, manganese; Ba, barium; As, arsenic; Cd, cadmium; Co, cobalt; Cr, chromium; Cs, cesium; Cu, copper; Hg, mercury; Ni, nickel; Pb, lead; Sr, strontium; Ti, titanium; U, uranium; V, vanadium; W, tungsten; Zn, zinc.