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Table 2 Main outcome measures, describing the incidence of OHCA in the study population, sensitivity and PPV

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

Author, year of publication Incidencea(OHCA analysed/100,000/year) Sensitivity of OHCA recognition PPV of OHCA recognition
[26] 32.5 20.0% N/A
[7] 32.9 71.0% *76.0%
[23] 120.5 68.9% 63.5%
[27] 55.7 71.0% N/A
[22] 86.8 76.7% 58.4%
[19] N/A 68.3% 65.0%
[21] 22.5 77.0% N/A
[21] 49.5 82.0% N/A
[29] 12.4 82.3% N/A
[30] 6.1 79.4% N/A
[6] 35.3 80.0% N/A
[14] 30.0 96.9% 97.9%
[25] 129.3 *82.9% *85.3%
[15] 60.0 14.1% N/A
[28] 30.3 61.0% N/A
[24] 40.8 65.9% 67.4%
  1. a = Value calculated from information in the study. US: United States, NO: Norway, OHCA: Out-of-Hospital Cardiac Arrest, PPV: Positive predictive value, N/A: Not available