Table 4 Adjusted geometric means for each province

oAs

DMA

92.04(63.09–134.28)

108.01(62.46–186.77)

106.67(54.03–210.59)

86.67(48.54–154.76)

98.25(64.67–149.28)

58.02(33.86–99.43)

0.161

MMA

4.35(1.36–13.93)

1.22(0.48_-3.11)^a

0.45(0.14–1.44)^ac

0.84(0.31–2.24)^ac

32.80(16.08–66.89)^b

0.24(0.09–0.59)^c

<0.001

Subtotal

106.62(74.49–152.62)

113.69(68.39–189.02)^a

112.00(59.57–210.56)^a

90.88(53.06–155.66)^a

124.11(84.17–182.98)^a

61.56(37.34–101.48)^a

0.040

iAs

As³⁺

0.84(0.23–3.04)

0.14(0.04–0.46)^a

0.13(0.03–0.56)^a

0.07(0.02–0.23)^a

6.18(2.50–15.32)^b

0.06(0.02–0.20)^a

<0.001

As⁵⁺

0.83(0.24–2.87)

0.12(0.04–0.34)^a

0.10(0.03–0.36)^a

0.10(0.03–0.28)^a

6.55(3.03–14.17)^b

0.05(0.02–0.15)^a

<0.001

Subtotal

1.84(0.53–6.43)

0.30(0.11–0.76)^a

0.24(0.07–0.77)^a

0.15(0.06–0.41)^a

15.48(7.51–31.91)^b

0.11(0.04–0.27)^a

<0.001

115.84(80.17–167.38)

116.59(70.11–193.87)^ac

113.73(60.47–213.88)^ac

91.91(53.64–157.46)^ac

144.03(97.67–212.39)^b

61.38(37.22–101.21)^c

0.008