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Table 1 Summary of included studies

From: The effectiveness of different patient referral systems to shorten waiting times for elective surgeries: systematic review

Characteristics Number (n = 9)
1. Publication year
 2015 2 (22%)
 2017 1(11%)
 2018 3 (33%)
 2019 3 (33%)
2. Country of research
 Canada 3 (50%)
 USA 1 (17%)
 Australia 1 (17%)
 Israel 1 (17%)
*Three systematic reviews are excluded  
4. Study design
 Observational studies 3 (33%)
 Systematic reviews 3 (33%)
 Quasi-experimental studies 2 (22%)
 Experimental studies (randomised trial) 1 (11%)
5. Study setting
 Institution 5 (80%)
 Health system 1 (20%)
*The study setting was determined considering the research setting for the target intervention. The systematic reviews were excluded  
6. Surgery types
 Elective surgery 4 (45%)
 Orthopaedic surgery 1 (11%)
 Neurosurgery 1 (11%)
 Eye surgery 2 (22%)
 Bariatric surgery 1 (11%)
  1. * indicate that how the studies were considered to categorise in the particular section
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