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Table 4 Urinary Fluoride and Abnormal Incidences of Bone Metabolism Indicators among the UF concentration groups

From: Change of urinary fluoride and bone metabolism indicators in the endemic fluorosis areas of southern china after supplying low fluoride public water

UF(mg/l)

BGP

CT

ALP

BMD

n

Abnormal(%)

n

Abnormal(%)

n

Abnormal(%)

n

Abnormal(%)

0.0 ~

120

9(7.5)

119

10 (8.4)

119

11(9.2)

98

2(2.0)

0.3 ~

252

22(8.7)

245

32(13.1)

245

17(6.8)

221

8(3.6)

0.6 ~

96

14(14.6)

96

17(17.7)

96

13(13.5)

81

1(1.2)

0.9 +

58

8(13.8)

59

12(20.3)

59

5(8.8)

54

4(7.4)

Total

526

53(10.1)

519

71(13.7)

519

46(8.8)

454

15(3.3)

χ2

 

0.42

 

6.42

 

3.96

 

1.46

P

 

0.22

 

0.09

 

0.27

 

0.70

Trend test χ2

 

3.52

 

6.85

 

0.45

 

1.60

P

 

0.03

 

0.00

 

0.25

 

0.10