Women in developed countries survive roughly a decade longer after a breast
cancer diagnosis compared to women in poor-to-middle-income countries, says a
new study.
Approximately 1 in 22 women in
India are expected to develop breast cancer, a statistic that has been steadily
increasing over time.
But this is only the tip of the
iceberg, say researchers from the University of Michigan in the United States,
who showed that women in developed countries survive roughly ten years longer
after a breast cancer diagnosis compared to women in poor-to-middle-income
countries.
The researchers conducted a study
on nearly 300 women in the southern rural district of Udupi, India. Depending
on the patient’s stage of cancer, they were treated with one of three possible
drug treatments.
Only 27 percent of patients were
diagnosed in the early stages of cancer, and after their diagnosis they
survived an average of 11 years with treatment. The majority of patients,
however, were diagnosed in the later stages of cancer, and subsequently
survived only 1 to 2.5 years with treatment.
While the breast cancer rate is
much higher in the United States at 1 in 8 women, the survival rate is also
much higher. For instance, the five-year survival rate for Indian women is
about 60 percent; in developed countries, it is 79 to 85 percent.
In India, many diagnoses occur at
later stages because screening is not available in those rural areas, says the
study’s principal investigator, Rajesh Balkrishnan, an associate professor at
U-M schools of Pharmacy and Public Health.
Fear, poverty, and ignorance
about breast cancer also delay treatment and diagnosis. And, if the diagnosis
does come early, access and use of breast cancer chemotherapy treatments – even
the generic inexpensive options – are not readily available. Only the latest
stage patients receive the most current and expensive treatments, says
Balkrishnan.
In contrast, women in developed
countries have access to earlier screening, leading to early detection of
breast cancer, and better access to good health care, which translates into
patients adhering to their chemotherapy treatment plans and higher survival
rates.
Balkrishnan noted that early
diagnosis paired with continued treatment is key to ensuring patient survival.
“I think if the tumor is
diagnosed early and treated aggressively, a patient can expect an additional
decade of survival,” he said. “But access and adherence to optimal treatment
remains very difficult for women in poorer countries.”
Source: University
of Michigan.
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