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Psychoneuroimmunology and Psychosomatic Medicine: Back to the Future

From the Departments of Psychiatry (J.K-G., L.M., T.F.R.), Molecular Virology, Immunology, and Medical Genetics (R.G.), and Psychology (T.F.R.), Ohio State University, and Ohio State Institute for Behavioral Medicine Research (J.K-G., R.G.), Columbus, OH.

View larger version (28K): [in a new window]   Fig. 1. The explosion of PNI research in the 1990s is illustrated by the increased percentage of PNI original articles, rapid communications, and case reports relative to the total number of such studies published in Psychosomatic Medicine by decade. The majority of PNI studies were published in the 1990s, accounting for more than 66% of all the PNI studies published in Psychosomatic Medicine from 1939 to 2000.

View larger version (42K): [in a new window]   Fig. 2. General categories of psychological focus of PNI studies published in Psychosomatic Medicine from 1939 through 2000. Values in parentheses indicate number of studies in each time period.

View larger version (29K): [in a new window]   Fig. 3. Distribution of mean subject age per study in PNI studies published in Psychosomatic Medicine expressed as a percentage of studies reporting demographic information. In studies that did not report means but did report ranges, the mean was calculated by averaging the upper and lower bound of the range. Total number of studies was 87.