Health

Early-Onset Cancer Rates Climb Sharply In The US; NIH Study Warns

Researchers from the US National Institutes of Health (NIH) have reported a significant rise in early-onset cancer cases between 2010 and 2019.

Published in Cancer Discovery, the study highlights a troubling increase in 14 out of 33 cancer types among Americans under the age of 50.

Alarming Growth In Common Cancers

The incidence of breast, colorectal, kidney, and uterine cancers surged among younger adults, with female breast cancer showing the steepest rise.

In 2019, nearly 4,800 more cases were diagnosed than projected from 2010 trends. These four cancers accounted for over 80% of the additional early-onset diagnoses that year.

Dr Meredith Shiels of the NIH’s National Cancer Institute, lead investigator of the study, stated, “This study provides a starting point for understanding which cancers are increasing among individuals under age 50.”

Obesity, Diagnosis Patterns May Be Driving Factors

The researchers linked this trend to a combination of factors, including rising obesity levels, enhanced screening methods, and earlier detection due to improved diagnostic tools and medical coding practices.

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“Cancer risk factors are becoming more common at younger ages,” Dr Shiels noted. “Changes in cancer detection and clinical diagnosis may also explain the increases in certain cancers.”

Data Highlights Mixed Trends

The research team analysed data from the US Centres for Disease Control and Prevention (CDC) and national mortality records, covering six age groups.

While 14 cancers increased in younger adults, 19 others—including lung and prostate cancers—showed declines, balancing the overall cancer incidence and mortality rates.

Conclusion And Future Outlook

Although total cancer mortality rates remained stable, the upward trend in early-onset cases raises public health concerns.

The NIH researchers emphasised the need for further investigation into lifestyle and environmental factors influencing younger populations, along with continued investment in early detection and preventive healthcare.

Richa Kaushik

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