| Author ID | Area of study | Diagnostic tool | Mean/median age of patients (Years) | Number of events (BAV) | Total number of participants (N) | Prevalence of BAV (%) | SE |
| Chou et al. 2019 | Taiwan | Echo, CT, MRI | 22.5 ± 5.7 | 6 | 88 | 6.8 | 0.0268 |
| Donadille et al. 2012 | France | Echo, MRI | 25.6 (19.6 - 34.2)1 | 49 | 233 | 21.03 | 0.0353 |
| Olivieri et al. 2013 | USA | Echo, MRI | 32.9 ± 15.5 | 47 | 208 | 22.6 | 0.0289 |
| Yesilkaya et al. 2015 | Turkey | Echo | 0 - 183 | 61 | 719 | 8.5 | 0.01 |
| Bondy et al. 2013 | USA | MRI | 18.1 ± 1 | 57 | 185 | 31.0 | 0.034 |
| Klaskova et al. 2017 | Poland | MRI | 14.0 (6.6 - 32.5)2 | 19 | 67 | 28.3 | 0.055 |
| Mondal et al. 2020 | India | Echo | 14.8 ± 3.97 | 6 | 103 | 5.8 | 0.023 |
| Yetman et al. 2018 | USA | Echo | 31.7 ± 12.6 | 226 | 569 | 39.7 | 0.02 |
| Kim et al. 2010 | USA | MRI | 18.4 ± 6.9 | 20 | 51 | 39.2 | 0.068 |
| Zelinska et al. 2018 | Ukraine | Echo | 9.33 ± 4.93 | 11 | 538 | 2.04 | 0.0061 |
| Yigit et al. 2017 | Turkey | MRI | 14.3 ± 3.5 | 9 | 47 | 19.1 | 0.0573 |
| Obara-Moszynska et al. 2018 | Poland | MRI, Echo | 13.9 ± 2.2 | 16 | 39 | 41.0 | 0.076 |
| Duijnhouwer et al. 2018 | Netherlands | MRI, CT | 28.7 (21.3 - 39.7)1 | 59 | 268 | 22.0 | 0.0253 |
| Bons et al. 2018 | Netherlands | CT | 35 ± 13 | 12 | 50 | 24.0 | 0.06 |
| Somerville et al. 2016 | Canada | MRI | 13.3 (9.0 - 17.9)2 | 9 | 24 | 37.5 | 0.0988 |