| Author, year | Breast failures (percent) | Delay in months |
| Atkins H; 1960 | 5/9 (56) | 9 to 17 |
| Feuerman L; 1962 | 0/1 (0) | - |
| Haagensen C; 1974 | 3/5 (60) | 5 to 64 |
| Kemeny M; 1986 | 0/7 (0) | - |
| Campana F; 1989 | 2/2 (100) | 9 to 67 |
| Ellerbroek N; 1990 | 7/13 (54) | 11 to 47 |
| Merson M; 1992 | 9/17 (53) | 2 to 34 |
| Van Ooijen B; 1993 | 3/14 (21) | 16 to 56 |
| Fouroudi F; 2000 | 5/6 (83) | 7 (median) |
| Feigenberg S; 2003 | 0/4 (0) | - |
| Blanchard D; 2004 | 12/16 (75) | - |
| Total | 46/94 (49) | - |
