I agree with Sol, the higher the number, the better, 1 in 12000 means you have a chance of being that 1 lady in amoungst 12000 ladies where only 1 should have a problem, that's great.
I for example had a 1 in 9 risk on the combined test and so had the cvs, and apparently all clear ad Devon should be free from chromosone issues.
Great news Hun