By Scott Burris
Sometimes researchers can tell policy makers pretty confidently what public health law interventions really make a difference. The PHLR website has more than 50 Evidence Briefs that summarize the results of systematic reviews of the evidence on interventional public health laws conducted by the Cochrane and Campbell Collaboratives, and the Community Guide to Preventive Services.. We know, for example, that there is significant evidence to support water fluoridation as an effective public health intervention aimed at reducing tooth decay (Portland, are you listening?). We know that workplace smoking bans prevent heart attacks. For laws like these, we have numerous high quality studies, sometimes even experiments, that show whether or not the law is effective.
Unfortunately, problems don’t wait for evidence, and usually by the time there is a substantial body of evidence in place to review, most states have already made their policy decisions. What do we do when there is a problem that demands action, but there is no clearly effective legal action to take?
One of these days we’ll blog about what we think should happen. But for now, we can look at what often does happen. Usually, it resembles the fads we see in fashion: One state tries something, and other states follow, until a lot of states are doing something that might, or might not be working.