Smear tests can cure cervical cancer
London: Women diagnosed with cervical cancer as a result of a smear test have a far better chance of being cured than women who do not go for tests, a Swedish study suggests.
The researchers found a 92 percent cure rate after a smear test diagnosis, compared with 66 percent for symptoms-based diagnoses.
The study looked at all women diagnosed with cervical cancer in Sweden between 1999 and 2001.
The Swedish research, carried out at the Karolinska Institute in Stockholm, followed 1,230 women for an average of eight years after diagnosis.
To estimate the chances of surviving cervical cancer, the study analysed cancers detected by an abnormal smear test result and all other cases based on diagnosis using symptoms.
The percentage of women cured after presenting with symptoms within the recommended interval between screenings was 74 percent, but for women with symptoms who were overdue for screening, this cure rate decreased to 60 percent.
Researchers found that the chances of being cured for all women who had a smear test within the recommended three to five years were 11 percent higher than for women who were overdue or who had never had a smear test.
This is a result of screen-detected cancers generally being found at an earlier stage, the study says.
Three-quarters of the 373 women who died from cervical cancer in the Swedish study had not had a cervical smear in the recommended timeframe.
Bengt Andrae, study author and senior consultant gynaecologist at Uppsala University, said that screening both reduced the risk of cervical cancer and was linked with improved likelihood of cure.
“Even if you have not gone to cervical screening before, go when you are invited because you have a much better prognosis than waiting for the symptoms to appear,” the BBC quoted Andre as saying.
The study has been published on bmj.com.
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