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Perinatal risk factors for childhood testicular germ-cell cancer: a Nordic population-based study

Olof Stephansson1, Caroline Wahnström, Andreas Pettersson

  • 1Clinical Epidemiology Unit and Centre for Pharmacoepidemiology, Department of Medicine, Karolinska University Hospital and Institute, Stockholm, Sweden. olof.stephansson@ki.se

Cancer Epidemiology
|August 18, 2011
PubMed

Insights

Abnormal fetal growth, measured by Ponderal Index (PI), is linked to increased risk of childhood testicular germ-cell cancer. This U-shaped association suggests abnormal fetal growth rates may confer risk in pediatric testicular cancer.

Area of Science:

  • Pediatric oncology
  • Reproductive health
  • Epidemiology

Background:

  • Limited research exists on testicular germ-cell cancer in boys under 15.
  • This study investigates perinatal factors associated with childhood testicular germ-cell cancer.

Purpose of the Study:

  • To examine the relationship between perinatal characteristics and the risk of testicular germ-cell cancer in boys under 15 years old.

Main Methods:

  • A case-control study identified 152 boys with testicular germ-cell cancer in Nordic countries (1967-2006).
  • 10 population controls per case were matched by birth year and country.
  • Conditional logistic regression analyzed odds ratios for cancer risk.

Main Results:

  • A U-shaped association was observed between Ponderal Index (PI) and childhood testicular germ-cell cancer risk.
  • Both low and high PI values were associated with increased cancer risk compared to the middle category.
  • No significant association was found with birth weight, birth length, or maternal factors.

Conclusions:

  • Abnormal fetal growth rate, indicated by PI, is associated with an increased risk of pediatric testicular germ-cell cancer.
  • These findings highlight the role of fetal growth patterns in the development of childhood testicular cancer.
Abstract

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