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Table 6 Detailed results from QUADAS-2 risk of bias assessment

From: Recognition of out-of-hospital cardiac arrest during emergency calls — a systematic review of observational studies

Author, year of publication RISK OF BIAS
PATIENT SELECTION INDEX TEST REFERENCE STANDARD FLOW AND TIMING
[26]
[7]
[23]
[27]
[22]
[19]
[21]
[21]
[29]
[30]
[6] ?
[14] ? ?
[25]
[15]
[28]
[24]
  1. = Low Risk ✘ = High Risk ? = Unclear Risk
  2. NO: Norway, US: United States of America