National March Cohort
Is part of collection at SND: Swedish Cohort Consortium (Cohorts.se)
Ylva Trolle Lagerros - Karolinska Institutet, Department of Medicine, Solna
Rino Bellocco - Karolinska Institutet, Department of Medical Epidemiology and Biostatistics
Karolinska Institutet - Department of Medicine, Solna
Three pages of this questionnaire were devoted to physical activity, the main focus of the project. Both previously validated and newly developed questions were used in order to estimate energy expenditure and to distinguish between constant low-level activity and short-term peak activity. We used a new rating scale for self-reports of time spent on different intensity levels of physical activity (and inactivity) during a typical day, allowing estimation of total energy expenditure on an interval scale level. This scale has been shown to be both valid and reliable. Seven pages contained questions about diet, using a 63-item validated semi-quantitative food frequency questionnaire that allows estimation of total energy intake and calorie adjustment. Supplementary questions were asked about intake of fried food, detailed pattern of alcohol intake, dietary supplements and use of health food preparations. Two pages had questions about anthropometrical measures, including height, weight (birth weight, current weight, and weight fluctuations), waist and hip measures (allowing calculations of BMI, le... Show more..
Essentially complete follow-up has since been attained through multiple record linkages, using the individually unique national registration numbers (NRNs) to ensure exact linkages. We have linked the cohort to Statistics Sweden’s Register of the Total Population and Population Changes, and to the Patient Register, Cancer Register, Causes of Death Register, and Prescribed Drug Register from the National Board of Health and Welfare, permitting accurate tracking of vital and health status of all cohort members. Presently, we have complete follow-up through 2010. We are currently applying for new linkages, which will allow us to have information updated through 2012.
In September 1997, the Swedish Cancer Society organized a four-day national fund-raising event, the National March, in almost 3,600 cities and villages around the country. In conjunction with this event, we established the Swedish National March Cohort. The cohort consists of 43,880 well-motivated men and women who participated in the National March in support of the Swedish Cancer Society. With a 36-page questionnaire about lifestyle, exposure was assessed in much greater detail than in almost any other cohort. Essentially complete follow-up is attained through multiple linkages with high-quality Swedish registers. Show less..
- Mode of collection: Self-administered questionnaire
- Time period(s) for data collection: 1997-09-11 – 1997-09-14
- Source of the data: Registers/Records/Accounts: Administrative, Population group, Registers/Records/Accounts
Department of Medicine, Solna
Medical and health sciences (Standard för svensk indelning av forskningsämnen 2011)
Public health, global health, social medicine and epidemiology (Standard för svensk indelning av forskningsämnen 2011)
Health (CESSDA Topic Classification)
Lagerros YT, Bellocco R, Adami HO, Nyrén O. Measures of physical activity and their correlates: the Swedish National March Cohort. Eur J Epidemiol. 2009;24(4):161-9. doi: 10.1007/s10654-009-9327-x. Epub 2009 Mar 18.
Yang F, Trolle Lagerros Y, Bellocco R, Adami HO, Fang F, Pedersen NL, Wirdefeldt K. Physical activity and risk of Parkinson's disease in the Swedish National March Cohort. Brain. 2015 Feb;138(Pt 2):269-75. doi: 10.1093/brain/awu323. Epub 2014 Nov 18.
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