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. Author manuscript; available in PMC: 2009 Dec 22.
Published in final edited form as: Am J Prev Med. 2008 Sep;35(3):245–248. doi: 10.1016/j.amepre.2008.05.024

Figure 1.

Figure 1

Hazard ratios and 95% CIs for risk of first stroke by own and spousal smoking status among married HRS participants aged ≥50 years. Numbers in parentheses are the number of events/person-years of follow-up. Estimates are covariate-adjusted as described in the text. CIs are based on clustered bias-corrected bootstrap with 1000 resamples.

HRS, Health and Retirement Study