Table 1 Overall authorship proportions by study sub-categories for articles published by cardiologists or radiologists/nuclear medicine physicians as the first or last authors

 All studies

71% (68–73%)

29% (27–32%)

< 0.0001

 Retrospective studies

69% (65–73%)

31% (27–35%)

< 0.0001

 Prospective studies

72% (69–75%)

28% (26–31%)

< 0.0001

 Pediatric population

70% (62–78%)

30% (22–38%)

< 0.0001

 Adult population

70% (68–73%)

30% (27–32%)

< 0.0001

 All studies

70% (67–72%)

30% (29–33%)

< 0.0001

 Retrospective studies

69% (65–73%)

31% (27–35%)

< 0.0001

 Prospective studies

70% (67–73%)

30% (27–33%)

< 0.0001

 Pediatric population

70% (62–79%)

30% (21–38%)

< 0.0001

 Adult population

69% (67–72%)

31% (28–33%)

< 0.0001