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Systematic Review Process:
Evidence syntheses projects (including systematic and scoping reviews) are labor intensive.
Writing the systematic review protocol may take 2-6 months and completing and writing a systematic review may take 1-2 years.( Cochrane Collaboration, Cochrane Community, Review Production. Time and Commitment.)
A study of registered systematic review protocols found that the mean time taken to complete a systematic review was 1.5 years. (Borah, R., Brown, A., Capers, P., & Kaiser, K. (2017). Analysis of the time and workers needed to conduct systematic reviews of medical interventions using data from the PROSPERO registry. BMJ Open, 7(2), E012545.)
A study on scoping reviews found a mean time of 5.2 months to complete a scoping review, while the high of the range was over 1.5 years. (Pham, M., Rajić, A., Greig, J., Sargeant, J., Papadopoulos, A., & McEwen, S. (2014). A scoping review of scoping reviews: Advancing the approach and enhancing the consistency. Research Synthesis Methods, 5(4), 371-385.)
*Time frame can vary significantly depending on the number of citations identified during screening
Steps and estimated time informed by Cornell University Library
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