These criteria allowed the categorization of evidence into four levels: strong, moderate, some, or insufficient [ 14] (see Table 1 for the definitions associated with these categories).
Such new methods are needed in order to modify SDH, particularly as the traditional categorization of evidence (which places randomized controlled trials and biomedical, laboratory-based experiments at the top of the hierarchy) is not sufficient to develop strategies aimed at promoting health equity, which is the core of SDH [ 9].
This list of issues is not exhaustive but can guide the categorization of the evidence base into topics of research.
This wildly distortive categorization is based on strength of evidence, not degree of risk.
Some of categorization schemes, such as that used in Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) [5], make use of criteria that are followed by a weight-of-evidence analysis; while others, such as those for categorization of plant protection products (PPPs), base management decisions on basic PBT criteria only.
Environment Canada uses a weight-of-evidence approach to determine bioaccumulation potential for their categorization and screening of the DSL.
Weight of evidence should be used in categorization of PPPs under Regulation 1107/2009.
We felt that this public policy framework, which presents broad, overlapping categorizations, was an ideal candidate to explore which potential models of evidence use were present.
Humans need to solve computationally intractable problems such as visual search, categorization, and simultaneous learning and acting, yet an increasing body of evidence suggests that their solutions to instantiations of these problems are near optimal.
Articles were graded using a commonly accepted categorization scheme (the SORT approach), which is recommended for grading the quality of evidence published in the medical literature [ 3].
