Cohorts in SIMPLER

Time line for questionnaires in the cohorts.
A description of the cohorts is published by Harris et al. (2013) "The Swedish mammography cohort and the cohort of Swedish men: study design and characteristics of two population-based longitudinal cohorts" Pdf, 353 kB. (pdf). Please note that there is an incorrect number in Figure 1 for SMC at "1997, Cohort after exclusions"; it should be 38,984 instead of 39,984.
A more detailed timeline of data collection for both the main cohorts and the subcohorts is available in this excel file Excel, 938 kB..
For a short overview of the cohorts, you may explore this summary Excel, 21 kB. in excel with numbers on respondents and exclusions.
PARTICIPANTS SMC AND COSM
Questionnaire | SMC | COSM |
---|---|---|
1987 | 61,433 |
|
1997 | 38,984 | 45,906 |
2008 Health questionnaire | 30,621 | 29,503 |
2009 Lifestyle questionnaire | 25,332 | 26,100 |
2019 Health questionnaire | 19,081 | 18,916 |
2019 Lifestyle questionnaire | 14,923 | 16,166 |
Please read our pages for the Questionnaires and the Variable Lists for exact formulations of questions and variables.
PARTICIPANTS IN THE SUBCOHORTS
| SMC subcohort Uppsala | SMC subcohort Västerås | COSM subcohort Västerås | COSM subcohort Örebro |
---|---|---|---|---|
Cycle 1 | N=5,032, collected 2003–2009 | N=2,630, collected | N=4,750, collected | N=232, collection started 2014 and ongoing |
Cycle 2 | N=1,232, collected 2015-2023 | Started October 2022 | Started October 2022 |
|
Cycle 3 | N=345, collection started 2023 and ongoing | |||
85+, home visit | N=307, collected |
| N=87, collected 2013–2014 |
|
*Sampling at Karolinska Institutet |
| *N=82, collected 2014 | *N=25, collected 2014 |
|
*Residents in Västmanland or Örebro counties at the start of SMC (1987) and COSM (1997) who had moved to and were living in Stockholm at the time of invitation to participate in the subcohort.
**NUMBER OF CASES OF DEATH AND DIFFERENT DISEASES AFTER COHORT ENTRY
| SMC, | COSM, | SUM |
---|---|---|---|
Death | 30,290 | 22,101 | 52,391 |
Cancer, all | 16,398 | 13,923 | 30,321 |
CVD | 42,259 | 32,203 | 74,462 |
IHD | 12,387 | 12,965 | 25,352 |
AMI | 6,890 | 7,025 | 13,915 |
Stroke | 9,223 | 7,033 | 16,256 |
Heart failure | 12,055 | 9,140 | 21,195 |
Diabetes | 10,116 | 8,846 | 18,962 |
Fracture, all | 23,309 | 10,249 | 33,558 |
Hip fracture | 7,894 | 2,840 | 10,734 |
Cataract extraction | 20,279 | 11,147 | 31,426 |
** The table shows the total number of outcomes. Number of incident cases varies depending on the type of analysis.
CVD, Cardiovascular disease; IHD, Ischemic heart disease; AMI, Acute myocardial infarction