Table 2

Number of articles published by group of journals, according to their main subject area

Articles (n (%)) Journals (n (%)) Total impact factors of journals
Occupational health844  (37.6)26  (4.5)11.382
Toxicology40 (1.8)14 (2.4)13.018
Environmental health92 (4.1)14 (2.4)13.291
Other1271 (56.6)523 (90.6)566.027
Total2247 (100)577 (100)603.718