Global representation in psychiatric research.

To monitor global representation in the psychiatric literature, we compared publication rates in the ten psychiatric journals with the highest impact factors in 1998 and 2008 by world regions. In both 1998 and 2008, North America, Northern Europe, Western Europe and Oceania produced the majority of psychiatric research papers published in these journals, despite representing only a small fraction of the world's population. This suggests that much of the world's population continues to be underrepresented in highly influential psychiatric journals.