Acknowledgement: the authors would like to thank A.I. Maklashova, Chief Physician at the Bryansk Regional Oncology Dispensary, for provision of impersonal statistical information about the incidence of MNOs in women in the towns and districts of the Bryansk Region for the years 2000–2019.

Author contribution: Golovleva AA — search for literature, statistical analysis, manuscript writing, editing and discussion; Korsakov AV — literature data analysis, study concept and design, interpretation of the results, approval of the final version of the article; Troshin VP — data analysis and interpretation, manuscript writing, editing and discussion; Milushkina OYu — literature data analysis, data analysis and interpretation, manuscript editing and discussion; Pivovarov YuP, Korolik VV — data analysis and interpretation, manuscript editing and discussion; Lagerev DG — statistical processing, data analysis and interpretation.

Compliance with ethical standards: the study involved the use of impersonal statistical information about the incidence of MNOs in women in the areas of the Bryansk Region for the years 2000–2019.