Overall BOBTs and their recurrences
| Articles | Cases (N.) | Recurrence | Months to recurrence |
|---|---|---|---|
| Hallgrìmsson 1972, Miles 1972, Roth 1985, Cuatrecasas 2009, Chia 2009, Aoun 2014, De Cecio 2014, Morales-Palacios 2016, Albu 2016, Garofalo 2019 | 33 | 0(a,b) | - |
| Woodruff 1981, Dierickx 2012, Takahama 2004, Wang 2010 | 14 | NK | - |
| Uzan 2012 | 10 | 1(b) | 50 |
| Klasa 2014 | 1 | 1(b) | 24 |
| Total | 58 | 2 | - |
NK: not known; (a) information not for all the cases; (b)data not updated to 2019