The practice of having health screenings could help tackle serious diseases, but not enough people are having them, according to new research.
The study was led by Dr Samir Gupta, an assistant professor at the University of Texas Southwestern Medical Center, who looked at how many people get screened for colorectal cancer in the state.
He found that 22 per cent of the people eligible for the screenings in Texas over the previous five years actually went through with one, but that there was a clear trend that people on low incomes were not getting themselves tested.
"Of our patients who did get screened, they either had insurance or saw their doctor regularly. Once you controlled for those variables, the screening rate was essentially zero," he explained.
Mr Gupta said that perhaps a model similar to that which has helped encourage more breast and cervical cancer screenings could be employed, but that it was most important to ensure a broad access to healthcare.
Last week, a study at the University of Edinburgh indicated that brain scans were not a necessary part of a general health screening.