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Table 2 Articles about Dietary Supplements (DS)

From: Does pharmaceutical advertising affect journal publication about dietary supplements?

Characteristics Number of issues reviewed Number of ANY articles about DS Clinical Trials or Cohort Studies Editorials Reviews TOTAL MAJOR ARTICLES (PER ISSUE)*
Most Pharmads (2 journals; average impact factor 6.9) TOTALS 49 35 0 2 2 4
   Number per issue   0.71 0 0.02 0.02 (0.08)*
Middle Pharmads (7 journals; average impact factor 18.5) Totals 220 142 30 15 2 47
   Number per issue   0.65 0.14 0.07 0.01 (0.21)*
Fewest Pharmads (2 journals; average impact factor 5.9) Totals 65 77 14 11 3 28
   Number per issue   1.2 0.22 0.17 0.05 (0.43)*
CAM JOURNALS 22 88 11 2 6 19
   Number per issue   4 0.5 0.09 0.27 (0.86)*
  1. *Overall differences in rates of publishing major articles about DS are statistically significant with P < 0.001. The rate for those with the most pharmads (0.08) is significantly lower than those with middle pharmads (0.21, P < 0.05). The rate for those with the middle pharmads (0.21) is significantly lower than those with the fewest pharmads (0.43, P < 0.05). The rate for the CAM journals (0.86) is significantly higher than that for the general medical journals with the fewest pharmads (<0.01)