Table 2. Proportion of authors with financial conflicts of interest in S1 guidelines dating from 2010 to 2013 with disclosed conflicts of interest (n = 218).

	Proportion (percentage)
Guidelines in which 0% of authors disclosed a financial conflict of interest	27 (12)
Guidelines in which 1 to 25% of authors disclosed a financial conflict of interest	28 (13)
Guidelines in which 26 to 50% of authors disclosed a financial conflict of interest	60 (28)
Guidelines in which 51 to 75% of authors disclosed a financial conflict of interest	43 (20)
Guidelines in which 76 to 100% of authors disclosed a financial conflict of interest	55 (25)
Guidelines in which the percentage of authors with a financial conflict of interest could not be determined with certainty because all authors’ conflict of interest statements were incomplete or absent	5 (2)