Overview
| Acronym |
SMC |
|---|---|
| Website | |
| Investigators | |
| Contacts | |
| Start Year | 1987 |
General Design
| Study Design | Cohort |
|---|---|
| General Information on Follow Up (profile, frequency) |
After baseline, participants were followed-up three times for updated exposure information, in 1997, 2008 and 2009. |
| Recruitment Target |
|
| Number of Participants |
66,651 |
| Number of Participants with Biological Samples |
14,904 |
| Supplementary Information about Number of Participants |
Saliva sample: 8744 participants |
Access
| Possible Access to Data |
|
| Possible Access to Biosamples |
|
| Other |
Marker Paper
Harris H, Håkansson N, Olofsson C, Stackelberg O, Julin B, Åkesson A, et al. The Swedish mammography cohort and the cohort of Swedish men: study design and characteristics of two population-based longitudinal cohorts. OA Epidemiology 2013 Oct 01;1(2):16.
Study Timeline
Each colour in the timeline graph below represents a separate Study Population, while each segment in the graph represents a separate Data Collection Event. Clicking on a segment gives more detailed information on a Data Collection Event.
Population
SMC population
The cohort is composed of women born between 1914 and 1948 and residing in the Uppsala County of central Sweden and in the adjacent Västmanland County at the time of recruitment.
Sources of Recruitment
| General Population |
|
|---|---|
| Supplementary Information | All women born between 1914 and 1948 were invited to participate. |
Selection Criteria
| Gender | Women only |
|---|---|
| Age | Minimum age 39, Maximum age 76 |
| Country | Sweden |
| Territory | Uppsala and Västmanland Counties (central Sweden) |
Sample Size
| Number of Participants |
66,651 |
|---|---|
| Number of Participants with Biological Samples |
14,904 |
| Supplementary Information about Number of Participants |
1987: 66 651 participants |
Data Collection Events
| Name | Description | Start | End |
|---|---|---|---|
| SMC - 1987 (baseline) | The questionnaire was sent by mail and included... | 1987 (March) | 1990 (December) |
| SMC - Registries | Information from health registries is updated... | 1987 (March) | 2016 (December) |
| SMC - 1997 (2nd follow-up) | The second questionnaire collected information... | 1997 (September) | 1997 (December) |
| SMC - Clinical exmination (Cycle 1, recruitment 1) | Participants from Uppsala were invited to... | 2003 (September) | 2009 (September) |
| SMC - Saliva | Saliva was collected at different time points... | 2005 (January) | 2008 (December) |
| SMC - 2008 (3rd (a) follow-up) | The 2008 questionnaire collected information... | 2008 (September) | 2008 (December) |
| SMC - 2009 (3rd (b) follow-up) | The fourth questionnaire collected information... | 2009 (April) | 2009 (December) |
| SMC - Clinical examination (Cycle 1, recruitment 2) | In a second recruitment round, additional SMC... | 2010 (April) | 2015 (September) |
| SMC - Clinical examination (Cycle 2) | Women who participated in the first SMC... | 2015 (October) | 2016 (December) |
Mica