In my post “Should you trust a medical journal?” I think I might have been a bit unfair. Not on The Lancet, which I have since discovered, via comments on David Roodman’s blog, has something of a track record of publishing sensational but not exactly evidence-based social science articles, but rather on Ernst Spaan et al. for challenging the systematicness of their systematic review of health insurance impacts in developing countries. It’s not that I now think Spaan et al. did a wonderful job. It’s just that I think they probably shouldn’t have been singled out in the way they were.
While we non-physicians may feel a bit peeved when we hear “Trust me, I’m a doctor”, our medical friends do seem to have evidence on their side. GfK, apparently one of the world’s leading market research companies, have developed a GfK Trust Index, and yes they found that doctors are one of the most trusted professions, behind postal workers, teachers and the fire service. World Bank managers might like to know that bankers and (top) managers come close to the bottom, just above advertising professionals and politicians.
Given the trust doctors enjoy, the recent brouhaha over allegations of low quality among some of the social science articles published in medical journals must be a trifle embarrassing to the profession. Here’s the tale so far, plus a cautionary note about a recent ‘systematic review’.