| Name | Norwegian Women and Cancer Study postgenome cohort |
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| Acronym | NOWAC |
| Last update | 01/21/2010 |
Affiliation
Principal investigator
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Eiliv Lund (Dr)
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Institute of Community Medicine, Faculty of Medicine, University of Tromsø |
Contact
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NOWAC information
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University of Tromsø, Norway
Phone: +47 77 64 4816 Email: nowac@ism.uit.no |
Website
Funding agencies
With the description of the genome in 2000 we decided to create a prospective study with a biobank that could hold biological material for a globolomic analysis i.e. of the genome (SNPs), the transcriptome (mRNA, miRNA), proteome and metabolom, in addition to lifestyle information obtained by questionnaire. Women in the cohort are then actively followed up for five years in order to obtain tumor tissue biopsies from the breast for expression profiling and concomitant blood samples in cases and cohort controls.
The three objectives are:
I. Study the potentials of transcriptomics in peripheral blood cells in relation to diagnosis of cancer among women in the postgenome cohort;
II. Study the interactions between genetic disposition and lifestyle on expression profiles in peripheral blood, and the potentials of expression profiles in the etiological research on cancer;
III. Develop NOWAC as a human model for systems biology.
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| Study design | Cohort |
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| Type of participants | Individuals |
| Target or final number of participants | 172000 |
| The headline number of participants is approximately 173,000. For the cohort study 50, 000 is the number approached in the first year. | |
| Target or final number of DNA | 63000 |
Selection criteria
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Women |
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Minimun: 48 years Maximun: 63 years |
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Norway |
Supplementary informations
To be born 1926-1965
Recruitment procedures
During the years 1991-2006 altogether 172 000 women randomly selected in the Norwegian female population have returned a questionnaire to the Institute of Community Medicine, University of Tromsø, Norway. The response rate was about 57%. 50 000 women born 1943-57 returned a blood sample.
Data Sources
| Cross-sectional | Repeated/continuous | |
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Collection procedures
The women were mailed an invitation with a photo-booklet of all oral contraceptives (Kumle et al. 2002) or hormonal replacement therapy brands (Bakken et al. 2001) and a questionnaire, 4 or 8 pages. All women have been sampled randomly from the Norwegian Central Person Register which contains information on all Norwegian inhabitants including a unique birth number consisting of the date of birth and five additional numbers giving a unique combination (Lunde et al. 1980).
Follow up procedures
No information available
Baseline principal variables of interest
Health information
Physical / Biochemical measures
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Sociodemographic Characteristics
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Socioeconomic Characteristics
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Life habits / Behaviours
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Physical environment
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Sample management
Biological samples
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Biological samples format
| Fresh | Frozen | Dried (paper) | Other | Specification | |
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| Blood |
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Legend
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Allow access to data or samples to external researchers
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Current status
| Phase | Start | End |
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| Preparation phase/Pilot | -- | -- |
| Recruitment / initial data collection | 1991 | 2006 |
| Follow-up of participants | 1991 | 2037 |
Supplementary informations
57% were willing to participate in the baseline; In 1998-2002, second mailing brought 81% of answers; In spring 2004, third mailing brought 75% for the first wave and before the first remainder.
| Current number of participants recruited | 172000 in date of 01/01/2010 |
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| Current number of collected DNA samples | 61000 in date of 01/01/2010 |
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| Document type | Availability | |
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| 1 | General study protocol |
Eiliv.lund@ism.uit.no |
| 2 | Specific protocols/procedures (data collection, samples management, etc.) |
Eiliv.lund@ism.uit.no |
| 3 | Questionnaires | |
| 4 | Physical and cognitive measures | |
| 5 | DNA processing | |
| 6 | IT | |
| 7 | Ethics | |
| 8 | Consent forms |
Eiliv.lund@ism.uit.no |
| 9 | Pamphlet / project description |
Eiliv.lund@ism.uit.no |
| 10 | Governance / ethics documentation |
Eiliv.lund@ism.uit.no |
| 11 | Other |
Publication url
http://uit.no/kk/Publications/
This is a research driven projects with no resources for handling external collaborations. All external collaborators have to pay the real cost usually as mutual funded grants
| Name | Kvinner , livsstils og helse. Kvinner og kreft- Women life"style" and Health. Women and Cancer |
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| Last update | 11/10/2009 |
| Phase | Recruitment |
| Year interval | 1991 to 2006 |
Questionnaire owner
Contact
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Eiliv Lund (Dr)
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Institute of Community Medicine, Faculty of Medicine, University of Tromsø
Tromso 9037 Email: Eiliv.lund@ism.uit.no |
Utilization conditions
none
Information on validity
The food frequency questionnaire has been validated twice against 24-h recall by telephone. The major questionnaire has been tested for reliability through a test-retest study. Several of the major exposure variables have been recently or are underway compared to biological measurements in plasma; free fatty acids, D-vitamin, organic pollutants, hormone levels, menopausal status and cosmetics.The external validity has been checked against national register data.
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Respondent
Administration environment
Administration mode
Administration format
Administration language
Available Format
NOTICE: HTML document format may differ slightly from the actual questionnaire. Please refer to the original PDF document for exact reproduction.
List of available documents related to the validation or specific utilizations of the questionnaire:
Lund E, Gram IT. The impact of design on response rates and exposure estimates from postal questionnaires. A population based randomized trial of 5.000 Norwegian women aged 35-49 years. Scand J Soc Med 1998; 26; 154-60.
Lund E, Kumle M, Braaten T, Hjartåker A, Bakken K, Eggen E, Gram IT. External validity in a population based national prospective study – the Norwegian Women and Cancer Study. Cancer Causes Control 2003; 14; 1001-8.
Hjartåker A, Andersen LF, Lund E. Comparison of diet measures from a food-frequency questionnaire with measures from repeated 24-hour dietary recalls. The Norwegian Women and Cancer Study. Public Health Nutrition 2007;10:1094-1103
Lund E, Dumeaux V, Braaten T, Hjartåker A, Engeset D, Skeie G, Kumle M.
Cohort profile: The Norwegian Women and Cancer Study--NOWAC--Kvinner og kreft. Int J Epidemiol. 2008 Feb;37(1):36-41.
Veierød MB, Parr CL, Lund E, Hjartåker A. Reproducibility of self-reported melanoma risk factors in a large cohort study of Norwegian women. Melanoma Res. 2008 Feb;18(1):1-9.
Dumeaux V, Børresen-Dale AL, Frantzen JO, Kumle M, Kristensen VN, Lund E.
Gene expression analyses in breast cancer epidemiology: the Norwegian Women and Cancer postgenome cohort study. Breast Cancer Res. 2008 Feb 5;10(1):R13
| Name | Kvinner , livsstils og helse. Kvinner og kreft- Women life"style" and Health. Women and Cancer |
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| Number of Question Blocks | 49 |