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Table 3 Second-hand smoke (SHS) exposure in ECRHS I-II, ECRHS II-III and ECRHS I-IIIa

From: Second-hand smoke exposure in adulthood and lower respiratory health during 20 year follow up in the European Community Respiratory Health Survey

  Changes between ECRHS I and II Changes between ECRHS II and III Changes between ECRHS I and III
No SHS exposure at both examinations 54.4 (1639/3011) 74.5 (2243/3011) 58.9 (1774/3011)
No SHS exposure at first examination but at second examination 6.9 (208/3011) 2.5 (74/3011) 2.4 (73/3011)
SHS exposure at first examination but not at second examination 22.5 (678/3011) 18.4 (553/3011) 33.9 (1022/3011)
SHS exposure at both examinations 16.1 (486/3011) 4.7 (141/3011) 4.7 (142/3011)
  1. apresented as % (n/N)