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Table 4 Change in odds ratios (OR) for exposures and outcomes in children related to SHS* exposure across surveys

From: Change in exposure of children to second-hand smoke with impact on children’s health and change in parental smoking habits after smoking ban in Bavaria – a multiple cross-sectional study

Survey
(year of survey)
S1
(2004)
S2
(2005)
S4
(2008)
S6
(2012)
S7
(2014)
S8
(2016)
  OR
(95% CI)
OR
(95% CI)
OR
(95% CI)
OR
(95% CI)
OR
(95% CI)
Child exposure to SHS and parental active smoking
No exposure to SHS at home from parents (a) Ref 1.17 (1.01–1.35) 1.65 (1.39–1.95) 2.85 (2.32–3.51) 2.24 (1.84–2.72) 3.66 (2.89–4.63)
No maternal smoking during pregnancy (a) Ref 1.22 (1.06–1.40) 1.12 (0.97–1.31) 1.57 (1.33–1.86)
None of parents is actively smoking (a) Ref 1.03 (0.94–1.12) 1.13 (1.03–1.24) 1.24 (1.13–1.36)
Adverse health effects in children related to exposure to SHS
Asthma never diagnosed by a doctor (b) Ref 0.76 (0.58–1.00) 0.74 (0.56–0.97) 1.64 (1.17–2.30)
Neurodermatitis never diagnosed by a doctor (c) Ref 1.19 (1.05–1.35) 1.13 (0.99–1.28) 1.45 (1.26–1.66)
Bronchitis never diagnosed by a doctor (c) Ref 1.01 (0.92–1.11) 1.23 (1.12–1.35) 1.36 (1.23–1.50)
< 4 wheezing episodes in last 12 months (d) Ref 1.08 (0.79–1.47) 1.17 (0.85–1.61) 2.06 (1.40–3.04)
  1. *SHS Second-hand smoking
  2. (a) Adjusted for urbanization, parental education, mother and father employment, birth place of child and living in crowding conditions
  3. (B) Adjusted for child gender, parental education level, mother and father employment status and living in crowding conditions
  4. (c) Adjusted for urbanization, child gender, parental education level, mother and father employment status, child birth-place and living in crowding conditions
  5. (d) Adjusted for child’s gender