What is the effect of environmental tobacco smoke exposure on stroke rates in nonsmokers?
The most recent meta-analysis identified that environmental tobacco smoke exposure compared with no exposure can increase the overall risk of stroke. Other reports identify comparative rates of an OR of an OR of 1.82 (95%) and an RR of 1.23 (95%) RR estimates. Data from the US National Health and Nutrition Examination Surveys identified that high exposure to environmental tobacco smoke for stroke survivors was associated with an adjusted HR for all-cause mortality of 1.72 (95% CI, 1.02-2.91), with a dose-dependent relationship.