Women randomized to the intervention group , compared with those randomized to the control group , were less likely to have invasive diagnostic testing ( 5.9 % vs 12.3 % ; odds ratio [ OR ] , 0.45 [ 95 % CI , 0.25-0 .80 ] ) and more likely to forgo testing altogether ( 25.6 % vs 20.4 % ; OR , 3.30 [ 95 % CI , 1.43-7 .64 ] , reference group screening followed by invasive testing ) .