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. 2011 Mar 19;41(4):961–967. doi: 10.1093/ije/dyr049

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Published by Oxford University Press on behalf of the International Epidemiological Association © The Author 2011; all rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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The Tromsø Study. Invitation by birth cohort and attained age in Tromsø 1–6. Invitation of total birth cohorts is marked as bold, shading indicates that samples of birth cohorts were invited. ^aAdjusted for deaths, emigration from Tromsø during the survey period etc. ^bMen only. ^c10% of total birth cohort and offspring of high-risk men who participated in a family intervention trial after the second survey. ^dRestricted to those who participated in the second visit in Tromsø 4. ^e 40% of the total birth cohorts. ^f10% of the total birth cohorts