A new study showed that cervical cancer screening should be done once every three years. With such a frequency, he is able to prevent most cases of this disease. More frequent screening is not beneficial.
A new study showed that cervical cancer screening should be done once every three years. With such a frequency, he is able to prevent most cases of this disease. More frequent screening is not beneficial. New data has been published in International Cancer Journal,
“Cancer screening works. Most women who developed cervical cancer simply did not get screened or did it too rarely, ”said Professor Cosette Wheeler of the University of New Mexico, lead author of the study.
Scientists compared cancer incidence rates and cervical cancer screening data (HPV-Pap test, which reveals abnormal cells and the content of the human papillomavirus in them) in the US state of New Mexico. Scientists were able to analyze the history of screening for those women who developed cervical cancer.
The authors compared the incidence rates of cervical cancer in women of the same age, of the same nationality and from similar places of residence (city or rural area). It turned out that 61% of women who did not have cervical cancer were screened for three years. Only 38% of women who were diagnosed with cancer were screened in the same time period.
Scientists have shown that in women whose screening results are negative, the likelihood of developing cervical cancer within 3.5-5 years is very low. Wheeler notes that HPV infection often goes away on its own, but the immune system takes time to act.
Researchers concluded that more frequent screening is not beneficial. The authors point out that the value of negative screening is enormous. He indicates that the risk of metastatic cancer in the coming years is lower by 80%, and the local form of cancer – by 50%.