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Table 3 IQ and SC in different water As groups

From: Arsenic contamination in groundwater and its effects on adolescent intelligence and social competence in Bangladesh with special reference to daily drinking/cooking water intake

Variable

IQ percentile (mean ± SD)

SC score (mean ± SD)

Water As (μg/L)

 Groups

  L1 (n = 120)

52.2 ± 21.4b

38.6 ± 5.6b

  L2 (n = 44)

43.4 ± 22.6a

37.6 ± 7.6a, b

  L3 (n = 52)

44.0 ± 22.6a

36.1 ± 9.0a

  L4 (n = 96)

40.7 ± 22.3a

35.9 ± 6.5a

  1. Values with different letters within the same column are statistically different
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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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