It is studies like this one that remind us to be careful when looking at the research. So high consumption of caffeine might lower our risk of ovarian cancer. Wonderful! Lets all go out and up our caffeine intake! If for one LOVE lattes (my weakness). But be careful before you run out that door, however, caffeine is also linked to miscarriage. I think the same is to be said for GBS testing, and many other topics. One study might encourage you to call your doc and schedule the test or request a particular intervention but another study will call for judicious use of testing/interventions and warn of unintended/harmful side effects. Do the research but don't forget to check in with your intuition.