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Table 2 Numbers of research questions and included studies in projects with data available publicly on the Systematic Review Data Repository (SRDR) website as of November 12, 2019, sorted by whether or not the review was funded by the Agency for Healthcare Research and Quality (AHRQ)

From: The Systematic Review Data Repository (SRDR): descriptive characteristics of publicly available data and opportunities for research

CharacteristicProjects funded by AHRQ (N = 104)Projects not funded by AHRQ (N = 48)All projects (N = 152)
Number of research questions per project
 Median (interquartile range)4 (3 to 6)1 (1 to 1)3 (1 to 5)
 Range1 to 151 to 51 to 15
Number of included studies per projecta
 Median (interquartile range)84 (36 to 139)13.5 (3 to 58)70 (20 to 130)
 Range0 to 2811 to 2013(0 to 2013)
  1. aExcludes three projects that examined systematic reviews only (i.e., did not examine primary studies)