ISLAMABAD: Screening for cancer does little to prevent deaths and may do more harm that good, a widespread review of studies has found.
Researchers at Stanford School of Medicine looked at data from 45 trials and 98 statistical reviews to find out whether screening for diseases like prostate or ovarian cancer was beneficial.
The research included information from more than 5.5 million people over follow-up periods of up to 30 years, Voice Of America reported.
Overall, the team found that more than two thirds of screening tests did not save lives and advised people to lower their `expectations of major benefit.’
The academics found that positive results were often skewed by other interventions which took place at the same time as checks.