| HPV | Human papillomavirus |
| CIN | Cervical intraepithelial neoplasia |
| CIN3+ | Histology-defined endpoint comprising CIN3, adenocarcinoma in situ (ACIS), or invasive cervical cancer |
| ACIS | Adenocarcinoma in situ |
| UNN | University Hospital of North Norway |
| SYSVAK | Norwegian Immunisation Registry |
| NORPAT | Norwegian Pathology Code System |
| LIS | Laboratory Information System |
| LEEP | Loop electrosurgical excision procedure |
| LLETZ | Large loop excision of the transformation zone |
| CI | Confidence interval |
| REK | Regional Committees for Medical and Health Research Ethics (REK Nord = Northern Norway) |
| SPSS | IBM SPSS Statistics |
| R | R statistical computing environment |