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Table 2 Summary of water exposures

From: Tap water use amongst pregnant women in a multi-ethnic cohort

  2a: Water Consumption Mean Min Percentile Distribution Max Consumed
  Variable    0.25 0.50 0.75   n %
HOME Tap water (filtered and unfiltered) (l/day) 0.7 0.0 0.2 0.6 0.8 2.6 32 82.1
  Filtered tap water (l/day) 0.2 0.0 0.0 0.0 0.0 2.0 8 20.5
  Unfiltered tap water (l/day) 0.5 0.0 0.0 0.4 0.8 2.6 24 61.5
  Tea (l/day) 0.3 0.0 0.0 0.2 0.4 2.4 22 56.4
  Coffee (l/day) 0.1 0.0 0.0 0.0 0.0 2.0 7 17.9
  Squash/cordial (l/day) 0.3 0.0 0.0 0.0 0.0 1.2 21 53.8
  Total tap water intake (l/day) 1.5 0.0 0.7 1.4 2.2 4.2 36 92.3
  Bottled water (l/day) 0.2 0.0 0.0 0.0 0.0 4.0 7 17.9
  Total fluid intake (l/day) 1.6 0.2 0.8 1.4 2.4 4.2 39 100.0
WORK Tap water (filtered and unfiltered) (l/day) * 0.2 0.0 0.0 0.0 0.4 2.0 6 28.6
  Filtered tap water (l/day) * 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Unfiltered tap water (l/day) * 0.2 0.0 0.0 0.0 0.4 2.0 6 28.6
  Tea (l/day) * 0.2 0.0 0.0 0.0 0.2 1.0 6 28.6
  Coffee (l/day) * 0.1 0.0 0.0 0.0 0.0 0.8 5 23.8
  Squash/cordial (l/day) * 0.1 0.0 0.0 0.0 0.0 0.8 2 9.5
  Total tap water intake (l/day) * 0.6 0.0 0.0 0.4 0.8 2.8 15 71.4
  Bottled water (l/day) * 0.3 0.0 0.0 0.0 0.6 2.0 8 38.1
  Total fluid intake (l/day) * 0.9 0.0 0.4 0.8 1.0 2.8 18 85.7
ELSEWHERE Tap water (l/day) 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Tea (l/day) 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Coffee (l/day) 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Squash/cordial (l/day) 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Total tap water intake (l/day) 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0
  Bottled water (l/day) 0.0 0.0 0.0 0.0 0.0 0.2 1 2.6
  Total fluid intake (l/day) 0.0 0.0 0.0 0.0 0.0 0.2 1 2.6
ALL Total tap water intake (l/day) 1.8 0.0 1.0 1.4 2.4 5.8 37 94.9
  Total fluid intake (l/day) 2.1 0.4 1.2 1.8 2.7 5.8 39 100.0
  2b: Showering, Bathing, Swimming Mean Min Percentile Distribution Max Activity carried out
  Variable    0.25 0.50 0.75   n %
SHOWERING & BATHING No. showers per week 5 0 3 5 7 14 34 87.2
  Duration per shower (min) † 16 5 10 15 20 60   
  Showering (min/week) 74 0 35 60 100 300 34 87.2
  No. baths per week 2 0 0 2 3 7 26 66.7
  Duration per bath (min) ‡ 40 10 26 30 38 120   
  Bathing (min/week) 72 0 0 60 120 360 26 66.7
  Total time showering/bathing (min/week) 146 35 73 110 185 540 39 100.0
SWIM No. swimming sessions per week 1 0 0 0 0 2 6 15.4
  Duration per swim (min) § 53 10 26 53 60 120   
  Swimming (min/week) 10 0 0 0 0 120 6 15.4
  1. * amongst those who were employed (n = 21), † amongst those who reported at least one shower per week (n = 34), ‡ amongst those who reported at least one bath per week (n = 26), §amongst those who reported going swimming at least once per week (n = 6)