Description of studies’ participants
| Study | Group | Participants | Age mean (SD) | Previous mammography | University degree |
| Mathieu et al 24 | Intervention | 172 | 41.9 (2.0)* | 53 (30.8%) | 76 (44.2%)† |
| Control | 212 | 41.8 (2.2)* | 52 (24.5%) | 126 (59.4%)† | |
| Eden et al 25 | Before-after | 75 | 45.0 (2.5) | 51 (68.0%) | 34 (45.3%) |
| Gummersbach et al 20 | Intervention | 178 | 48.67 (0.79) | ‡ | 33 (18.5%) |
| Control | 175 | 48.76 (0.80) | ‡ | 23 (13.2%) | |
| Hersch et al 11 | Intervention | 419 | 49.67 (0.44) | § | 119 (28.4%) |
| Control | 419 | 49.70 (0.44) | § | 123 (29.4%) |
*Out of the assessed participants, 116 and 198 in intervention and control groups, respectively.
†Out of the assessed participants, 114 and 199 in intervention and control groups, respectively.
‡Three and four women with breast cancer in intervention and control groups, respectively. Participants were not asked about mammographic exams in the past.
§No women with previous mammogram in the previous 2 years but it is not stated how many women had mammograms more than 2 years before being included in the study.