| CMBD | Conjunto Mínimo Básico de Datos |
| COVID-19 | Coronavirus disease 2019 |
| HIV | Human immunodeficiency virus |
| HPV | Human papillomavirus |
| ICD | International Classification of Diseases |
| MBDS | Minimum Basic Data Set |
| n.r. | Not reported |
| PCC | Population–Concept–Context |
| RAE-CMBD | Expanded CMBD framework (enhanced Spanish hospital discharge database) |
| ROBINS-I | Risk of bias in non-randomised studies of interventions |
| RSV | Respiratory syncytial virus |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |