Norwegian Institute Of Public Health

This large study is testing whether a screening procedure called flexible sigmoidoscopy can lower the number of colorectal cancer cases and deaths. About 100,000 men and women aged 50-64 in Norway are taking part. The study also looks at adding a stool blood test and how screenin…

This study tests whether portable HEPA air purifiers in primary school classrooms can reduce student absences caused by respiratory infections like colds and flu. About 1,400 students in grades 5-7 across 62 Norwegian schools will take part. Half the classrooms will get real puri…

This study compares two screening methods—a stool test and a flexible tube exam—to see which works best for detecting colorectal cancer early. About 140,000 adults aged 50-74 in Norway are taking part. The goal is to find the most effective way to screen the population and reduce…