Strategy for Data Synthesis
Graphs and tables created with Microsoft Excel (Redmond, Wash.) were
used to summarize data. Statistical analyses were conducted with
GraphPad Prism (version 7.0, GraphPad Software, Inc, USA). Pairwise
correlations (AMSTAR Score vs. Impact Factor, AMSTAR Score vs. Total #
of Citations, AMSTAR Score vs. Publication Year) were evaluated using
the Pearson correlation coefficient (r). The difference in AMSTAR Score
by source of funding (government vs. institution, Cochrane vs.
non-Cochrane, etc.) was evaluated with a two-tailed T-test. A P-value of
less than 0.05 was considered statistically significant.