Table 2 Assessment of biochemical characteristics in drinking water, diet and 24 h urine.

From: Comparison of serum calcium, magnesium, phosphate, alkaline phosphatase, and vitamin D levels in children consuming reverse osmosis, non reverse osmosis, and high fluoride drinking water

Variables

RO water

Non RO

High fluoride water

p-value

Calcium in drinking water (mg/l)

5.24(3.59)

35.86(12.76)

65.49(18.32)

0.001

Magnesium in drinking water (mg/l)

1.72(1.18)

17.71(15.91)

80.91(28.60)

0.001

Fluoride in drinking water (ppm)

0.14(0.13)

0.56(0.30)

1.58(0.15)

0.001

Total dissolved solids in drinking water (mg/l)

13.06(8.15)

361.63(284.26)

553.02(130.72)

0.001

Calcium assessed through food frequency questionnaire (mg)

531.98(138.24)

538.34(130.03)

560.97(63.36)

0.381

Magnesium assessed through food frequency questionnaire (mg)

727.05(160.12)

667.56(186.66)

705.25(142.10)

0.257

phosphate assessed through food frequency questionnaire (mg)

1781.90(381.28)

1625.28(473.83)

1731.29(347.96)

0.205

Vitamin D assessed through food frequency questionnaire (mcg)

23.02(10.49)

22.45(6.65)

23.81(6.08)

0.725

  1. Total dissolved solids in drinking water refers to the concentration of dissolved substances both in organic and inorganic forms. p value represents the comparison of biochemical characteristics of RO, non-RO and high fluoride drinking water children. The comparison of the values was done using ANOVA test.
Back to article page