| Title |
Birth order and risk of childhood cancer in the Danish birth cohort of 1973–2010
|
|---|---|
| Published in |
Cancer Causes & Control, August 2015
|
| DOI | 10.1007/s10552-015-0651-z |
| Pubmed ID | |
| Authors |
Joachim Schüz, George Luta, Friederike Erdmann, Gilles Ferro, Andrea Bautz, Sofie Bay Simony, Susanne Oksbjerg Dalton, Tracy Lightfoot, Jeanette Falck Winther |
| Abstract |
Many studies have investigated the possible association between birth order and risk of childhood cancer, although the evidence to date has been inconsistent. Birth order has been used as a marker for various in utero or childhood exposures and is relatively straightforward to assess. Data were obtained on all children born in Denmark between 1973 and 2010, involving almost 2.5 million births and about 5,700 newly diagnosed childhood cancers before the age of 20 years. Data were analyzed using Poisson regression models. We failed to observe associations between birth order and risk of any childhood cancer subtype, including acute lymphoblastic leukemia; all rate ratios were close to one. Further analyses stratified by birth cohort (those born between 1973 and 1990, and those born between 1991 and 2010) also failed to show any associations. Considering stillbirths and/or controlling for birth weight and parental age in the analyses had no effect on the results. Analyses by years of birth (those born between 1973 and 1990, and those born between 1991 and 2010) did not show any changes in the overall pattern of no association. In this large cohort of all children born in Denmark over an almost 40-year period, we did not observe an association between birth order and the risk of childhood cancer. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 1 | 25% |
| United Kingdom | 1 | 25% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 50% |
| Science communicators (journalists, bloggers, editors) | 1 | 25% |
| Scientists | 1 | 25% |
Mendeley readers
The data shown below were compiled from readership statistics for 26 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 26 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 6 | 23% |
| Researcher | 5 | 19% |
| Student > Master | 5 | 19% |
| Student > Postgraduate | 2 | 8% |
| Student > Bachelor | 1 | 4% |
| Other | 4 | 15% |
| Unknown | 3 | 12% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 14 | 54% |
| Biochemistry, Genetics and Molecular Biology | 2 | 8% |
| Psychology | 2 | 8% |
| Nursing and Health Professions | 1 | 4% |
| Social Sciences | 1 | 4% |
| Other | 1 | 4% |
| Unknown | 5 | 19% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 October 2015.
All research outputs
#14,825,784
of 24,849,927 outputs
Outputs from Cancer Causes & Control
#1,506
of 2,242 outputs
Outputs of similar age
#130,453
of 269,998 outputs
Outputs of similar age from Cancer Causes & Control
#20
of 35 outputs
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