front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |review

In order for a screening test to be useful, a number of criteria must be met. The test must be reliable and valid, and have acceptable predictive value, and it must lead to early detection which reduces mortality.