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Publishing patterns and citation performance of manuscripts relating to paediatric cardiology and congenital heart disease: comparison of paediatric and adult cardiology journals.

BACKGROUND
Manuscripts pertaining to paediatric cardiology and CHD have been published in a variety of different journals. Some of these journals are journals dedicated to paediatric cardiology, while others are focused on adult cardiology. Historically, it has been considered that manuscripts published in journals devoted to adult cardiology have greater citation potential. Our objective was to compare citation performance between manuscripts related to paediatric cardiology and CHD published in paediatric as opposed to adult cardiology journals.


METHODS
We identified manuscripts related to paediatric cardiology and CHD published in five journals of interest during 2014. Of these journals, two were primarily concerned with adult cardiology, while the other three focused on paediatric cardiology. The number of citations for these identified manuscripts was gathered from Google Scholar. We compared the number of citations (median, mean, and 25th, 75th, 90th, and 95th percentiles), the potential for citation, and the h-index for the identified manuscripts.


RESULTS
We identified a total of 828 manuscripts related to paediatric cardiology and congenital heart as published in the 5 journals during 2014. Of these, 783 (95%) were published in journals focused on paediatric cardiology, and the remaining 45 (5%) were published in journals focused on adult cardiology. The median number of citations was 41 in the manuscripts published in the journals focused on adult cardiology, as opposed to 7 in journals focused on paediatric cardiology (p < 0.001). The h-index, however, was greater for the journals dedicated to paediatric cardiology (36 versus 27).


CONCLUSION
Approximately one-twentieth of the work relating to paediatric cardiology and CHD is published in journals that focus predominantly on adult cardiology. The median number of citations is greater when manuscripts concerning paediatric cardiology and CHD are published in these journals focused on adult cardiology. The h-index, however, is higher when the manuscripts are published in journals dedicated to paediatric cardiology. While such publications in journals that focus on adult cardiology tend to generate a greater number of citations than those achieved for works published in specialised paediatric cardiology journals, the potential for citation is no different between the journals. Due to the drastically lower number of manuscripts published in journals dedicated to adult cardiology, however, median performance is different.