| Author; Year; Number of Participants. | Study Design | Participants Included |
| Stuijt et al., 2012; [31] n = 290 for prevalence. Pre-intervention (n = 60) residents. First evaluation (n = 55) and second intervention (n = 62). |
Prospective, observational before–after design, study. | Residents with swallowing difficulties in six psychogeriatric wards in two Dutch nursing homes. |