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Table 6 10-11 year old children in Wales allocated to each tertile by number of parent figures who smoke in the home.

From: Changes in child exposure to secondhand smoke after implementation of smoke-free legislation in Wales: a repeated cross-sectional study

   Low
(<0.10 ng/ml)
n(%)
Medium
(0.10-0.50 ng/ml)
n(%)
High
(>0.50 ng/ml)
n(%)
Total
n
Neither parent smokes in home 2007 549 (64.36) 244 (28.60) 60 (7.03) 853
  2008 638 (70.03) 198 (21.73) 75 (8.23) 911
Father figure smokes in home 2007 28 (20.59) 41 (30.15) 67 (49.26) 136
  2008 18 (13.64) 47 (35.61) 67 (50.76) 132
Mother figure smokes in home 2007 12 (8.39) 31 (21.68) 100 (69.93) 143
  2008 12 (9.22) 28 (19.86) 100 (70.92) 141
Both parents smoke in home 2007 8 (3.76) 19 (8.92) 186 (87.32) 213
  2008 7 (4.24) 15 (9.09) 143 (86.67) 165