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CMAJ
CMAJ - November 3, 1998JAMC - le 3 novembre 1998

Correction: Secondhand smoke and cancer:
Where's the proof?

CMAJ 1998;159:1087

In the letter "Secondhand smoke and cancer: Where's the proof?" (CMAJ 1998;159[5]:441-2), by Drs. Dildar Ahmad and W. Keith Morgan, the confidence interval for the relative risk of a nonsmoker who lives in a house with a smoker was given incorrectly. The relative risk, reported from a study by the World Health Organization, was 1.16 and the confidence interval should have been 0.93 to 1.44. We apologize for the error.

The online version is correct. — Ed.