Skip to main content

Table 1 Number of articles with equal credit given to multiple authors in the five public health journals in 2004–2013

From: An emerging trend of equal authorship credit in major public health journals

Year Epidemiologic Reviews Environmental Health Perspectives International Journal of Epidemiology Epidemiology Annual Review of Public Health
2004 0/10 (0 %) 2/252 (<1 %) 1/130 (<1 %) 0/89 (0 %) 0/24 (0 %)
2005 0/10 (0 %) 4/310 (1.3 %) 1/139 (<1 %) 0/105 (0 %) 0/24 (0 %)
2006 0/11 (0 %) 4/343 (1.2 %) 1/145 (<1 %) 0/89 (0 %) 0/22 (0 %)
2007 0/12 (0 %) 6/304 (2.0 %) 2/128 (1.6 %) 0/94 (0 %) 0/22 (0 %)
2008 0/10 (0 %) 13/272 (4.8 %) 0/133 (0 %) 0/95 (0 %) 0/25 (0 %)
2009 1/11 (9.1 %) 15/303 (5.0 %) 6/141 (4.3 %) 0/109 (0 %) 0/21 (0 %)
2010 0/13 (0 %) 17/270 (6.3 %) 7/161 (4.3 %) 0/110 (0 %) 0/30 (0 %)
2011 0/13 (0 %) 15/288 (5.2 %) 6/121 (5.0 %) 0/92 (0 %) 0/26 (0 %)
2012 0/14 (0 %) 10/268 (3.7 %) 12/128 (9.4 %) 0/88 (0 %) 0/25 (0 %)
2013 0/13 (0 %) 12/208 (5.8 %) 11/133 (8.3 %) 6/101 (5.9 %) 0/24 (0 %)
Total 1/117 (<1 %) 98/2818 (3.5 %) 47/1359 (3.5 %) 6/972 (<1 %) 0/243 (0 %)
r, P value r = 0.058, P = 0.873 r = 0.753, P = 0.012 r = 0.894, P = 0.000 r = 0.522, P = 0.122
  1. The numerator represents the number of articles with equal credit given to multiple authors: the denominator represents the total number of articles published in a certain year in that journal