A new study has issued a stark warning that the chances of surviving bowel cancer for patients under the age of 50 drop dramatically if the disease is not detected early. Cases of bowel cancer, also known as colorectal cancer, have surged among younger adults in recent decades. Approximately one in ten cases now occur in individuals under 50, and diagnoses among those aged 25 to 49 have doubled since the early 1990s.
Bowel cancer is currently the fourth most common cancer in Britain, responsible for around 46,600 new cases and 17,700 deaths each year. The study, published in JAMA Oncology, emphasizes that early detection and treatment are crucial, warning that delays can have catastrophic consequences.
Researchers from UT Southwestern Medical Center in Dallas analyzed data from 112,672 colorectal cancer patients in Texas over a 15-year period, including 12,079 diagnosed before the age of 50—classified as early-onset colorectal cancer (EOCRC). The study found that while younger patients generally have better overall survival rates than those diagnosed later in life, delays of more than six weeks between diagnosis and the start of treatment for EOCRC patients were linked to a 29% higher risk of death over the study period.
Additionally, those diagnosed with metastatic bowel cancer, known as stage four, faced almost six times the risk of death compared to patients whose cancer was caught early. The authors noted, 'In this cross-sectional study, EOCRC was associated with improved survival rates compared to those diagnosed over 50; however, treatment delays were independently associated with worse survival among patients with EOCRC.'
Patients whose cancer had spread only to nearby lymph nodes and tissues also had a 49% higher risk of death than those diagnosed at the earliest stage. Language barriers were identified as a key factor contributing to treatment delays. Patients with difficulty communicating were significantly more likely to experience delays, which in turn were linked to poorer survival outcomes.
The researchers wrote, 'Treatment delays were associated with worse overall survival, and the presence of a language barrier was identified as a key social risk factor contributing to treatment delays in this population.'
These findings come amid growing concern over a global rise in bowel cancer among younger adults. Separate research published by the American Cancer Society (ACS) in March found that the disease is killing people aged 20 to 49 at unprecedented rates. The study revealed an approximate 3% annual increase in young adults being diagnosed with bowel cancer, with 158,850 new cases and 55,230 deaths predicted in the US in 2026.
In February, Dawson's Creek star James Van Der Beek died after a two-year battle with bowel cancer at age 48. Analyses last year also uncovered rising bowel cancer cases in under-50s across nations including Britain, Australia, and Canada, fueling fears about the uptick in the disease.
Dr. Ahmedin Jemal, senior vice president of surveillance, prevention, and health services research at the ACS, stated, 'It's clear that colorectal cancer can no longer be called an old person's disease. We must double down on research to pinpoint what is driving this tsunami of cancer in generations born since 1950.'
