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  1. Lance, Rogerio Cortecioni MSc
  2. Pazin-Filho, Antonio PhD
  3. Neves, Fabio Fernandes PhD


The objective of this study was to evaluate the impact of telephone calls and short text messages (SMS) on no-show rates regarding scheduled appointments with a general practitioner. In a prospective, intervention-controlled, and randomized study, we divided 306 patients into 3 groups: telephone call, SMS, and no intervention. We compared no-show rates, as well as variables that influenced it. The lowest percentage of no-show (9.5%) occurred in the telephone call group, while the SMS group presented at 21% and the no-intervention group at 22.8% (P = .025). Telephone calls proved to be a superior strategy to text messaging.