Birth and Parental Traits Linked to Early-Onset Colorectal Cancer
Publication Title: Demographic, birth, parental characteristics, and the risk of early‐onset colorectal cancer: A population‐based nested case‐control study in California
Summary
- Question
- This study examined whether demographic, birth, and parental characteristics influence the risk of early-onset colorectal cancer (EOCRC), defined as colorectal cancer diagnosed before age 50. Researchers specifically explored factors such as sex, ethnicity, birthweight, maternal birthplace, and paternal age.
- Why it Matters
EOCRC is becoming more common and is the leading cause of cancer-related deaths under age 50 in the United States. Understanding risk factors could help identify patients at higher risk for EOCRC, improve early detection, and guide public health interventions. This is particularly important for young Hispanic individuals, who are experiencing rising EOCRC rates.
- Methods
- Researchers conducted a nested case-control study using California birth records from 1982 to 2021, linked to statewide cancer diagnosis data from 1988 to 2021. The study included 1,221 EOCRC cases diagnosed before age 40 and 61,050 controls matched by birth year. Logistic regression was used to evaluate associations between risk factors and EOCRC.
- Key Findings
- The study found that males had a 34% higher risk of EOCRC compared to females. Hispanic ethnicity was associated with a 43% increased risk compared to non-Hispanic White individuals. Among females, higher birthweight and having a father aged 35 or older were linked to increased EOCRC risk. In contrast, having a foreign-born mother appeared to reduce EOCRC risk, particularly among males.
- Implications
The findings highlight the importance of targeted prevention strategies, particularly for males and Hispanic individuals who face higher EOCRC risk. The protective effect of having a foreign-born mother suggests that maternal health behaviors, such as diet and obesity during pregnancy, may influence offspring cancer risk. These insights could inform screening guidelines and interventions tailored to patients at higher risk for EOCRC.
- Next Steps
- Further research is needed to validate these findings and investigate the mechanisms underlying the identified risk factors. Future studies could explore genetic and environmental interactions, maternal obesity, and paternal age-related mutations to better understand EOCRC development.
- Funding Information
This research was supported by the National Cancer Institute (awards 1F31CA281335-01 and 2T32CA250803-06). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Yale University also provided funding and support for this research.
Full Citation
Authors
Sunny Siddique, MPH, PhD
First AuthorPostdoctoral Fellow
Xiaomei Ma, PhD
Last AuthorProfessor of Epidemiology (Chronic Diseases)