Effectiveness of cervical screening after age 60 according to screening history: nationwide cohort study

Creator/Principal investigator(s):

Description:

The relatively high incidence of cervical cancer in women at older ages is an issue in countries performing cervical screening for decades. Controversy remains on when and how to cease screening. Existing population-based studies on effectiveness of cervical screening at older ages have not considered women’s screening history. We performed a nationwide cohort study to investigate the incidence of cervical cancer after age 60 and its association with cervical screening at ages 61-65, stratified by screening history at ages 51-60.
Using the Total Population Register, we identified women born between January 1919 and December 1945, resident in Sweden since age 51. According to the year that each county started the electronic record of cervical screening and women’s resident county, we further identified 569,132 women that have cervical screening record available since age 51. Women’s screening records, cervical cancer occurrence, and level of education were retrieved from the Swedish National Cervical Screening Registry, the National Cancer Register, and LISA (Longitudinal integration database f

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Principal organisation:

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Creator/Principal investigator(s):

Identifiers:

SND-ID: SND 1028

Purpose:

In order to provide evidence for age and criteria to discontinue cervical screening, we use this data to investigate the impact of cervical screening at ages 61-65 on cervical cancer incidence and stage at ages 61-80, stratifying by screening history at ages 51-60.

Description:

The relatively high incidence of cervical cancer in women at older ages is an issue in countries performing cervical screening for decades. Controversy remains on when and how to cease screening. Existing population-based studies on effectiveness of cervical screening at older ages have not considered women’s screening history. We performed a nationwide cohort study to investigate the incidence of cervical cancer after age 60 and its association with cervical screening at ages 61-65, stratified by screening history at ages 51-60.
Using the Total Population Register, we identified women born between January 1919 and December 1945, resident in Sweden since age 51. According to the year that each county started the electronic record of cervical screening and women’s resident county, we further identified 569,132 women that have cervical screening record available since age 51. Women’s screening records, cervical cancer occurrence, and level of education were retrieved from the Swedish National Cervical Screening Registry, the National Cancer Register, and LISA (Longitudinal integration database f

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Language:

English

Time period(s) investigated:

1970-01-01 — 2011-12-31

Geographic spread:

Geographic location: Sweden

Unit of analysis:

Population:

Women resident in Sweden since age 51 whose cervical screening records are available since age 51

Time Method:

Sampling procedure:

Total universe/Complete enumeration

Ethics Review:

Stockholm —2011/921-32

Funding:

Swedish Research Council

Swedish Foundation for Strategic Research, SSF —KF10-0046

The Swedish Cancer Society

Publications

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Effectiveness of cervical screening after age 60 according to screening history: nationwide cohort study, 2017

If you have published anything based on these data, please notify us with a reference to your publication(s).

Version 1.0:

2017-08-28 doi:10.5878/002910

Available documentation:

Effectiveness of cervical screening after age 60 according to screening history: nationwide cohort study

Citation:

Pär Sparén. Karolinska Institutet, Department of Medical Epidemiology and Biostatistics (2017). Effectiveness of cervical screening after age 60 according to screening history: nationwide cohort study. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/002910

Description:

This data comprises women born between January 1919 and December 1945, resident in Sweden since age 51, and having cervical screening record available since age 51.
It contains the following variables:
- Seq_nr: sequence number indicating each individual woman, from 1 to 569,132.
- Edu_cat: level of education in three categories: 1=low (less than high school); 2=high school; 3=university exam and above; .=missing. Data are retrieved from LISA (Longitudinal integration database for health insura

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Data format / data structure:

Numeric

Data collection:

Time period(s) for data collection: 1991 — 2013

Source of the data: Registers/Records/Accounts: Administrative, Registers/Records/Accounts: Medical/Clinical

Time period(s) investigated:

1970-01-01 — 2011-12-31

Variables:

12

Number of individuals/objects:

569132