TABLE 1.

Influence of maternal and grandmaternal smoking during pregnancy on early childhood wheeze

	Odds ratio; 95% CI
No maternal or grandmaternal smoking	Reference
Only maternal smoking	0.9, CI: 0.4–2.3
Only grandmaternal smoking	0.9, CI: 0.3–2.4
Maternal and grandmaternal smoking	2.6, CI: 0.9–7.1

Note: Data from the Isle of Wight 3rd Generation cohort.