Reply to the Chen and Chen

Gabriela Rolová^{1

2

3}, Anders Engeland^{4

5}, Line Pedersen^{6

7}, Ingvild Odsbu^{3

4}, Aleksi Hamina^{3

8}, Svetlana Skurtveit^{3

4}

Affiliations

¹ First Faculty of Medicine, Department of Addictology, Charles University, Prague, Czech Republic.
² Department of Addictology, General University Hospital in Prague, Prague, Czech Republic.
³ Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway.
⁴ Norwegian Institute of Public Health, Oslo, Norway.
⁵ Institute of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
⁶ Clinic of Emergency Medicine and Prehospital Care, St. Olavs Hospital, Trondheim, Norway.
⁷ Faculty of Medicine and Health Sciences, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.
⁸ Department of Forensic Psychiatry, Niuvanniemi Hospital, Kuopio, Finland.

Gabriela Rolová et al. Pain. 2025.

. 2025 Oct 1;166(10):e493-e494.

doi: 10.1097/j.pain.0000000000003741. Epub 2025 Jul 14.

Gabriela Rolová^{1

2

3}, Anders Engeland^{4

5}, Line Pedersen^{6

7}, Ingvild Odsbu^{3

4}, Aleksi Hamina^{3

8}, Svetlana Skurtveit^{3

4}

¹ First Faculty of Medicine, Department of Addictology, Charles University, Prague, Czech Republic.
² Department of Addictology, General University Hospital in Prague, Prague, Czech Republic.
³ Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway.
⁴ Norwegian Institute of Public Health, Oslo, Norway.
⁵ Institute of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
⁶ Clinic of Emergency Medicine and Prehospital Care, St. Olavs Hospital, Trondheim, Norway.
⁷ Faculty of Medicine and Health Sciences, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.
⁸ Department of Forensic Psychiatry, Niuvanniemi Hospital, Kuopio, Finland.

No abstract available

References

1. Bakken IJ, Ariansen AMS, Knudsen GP, Johansen KI, Vollset SE. The Norwegian patient registry and the Norwegian registry for primary health care: research potential of two nationwide health-care registries. Scand J Public Health 2020;48:49–55.
1. Gjerde LC, Skurtveit S, Handal M, Nesvag R, Clausen T, Lid TG, Hamina A, Borchgrevink PC, Odsbu I. Mental disorder prevalence in chronic pain patients using opioid versus non-opioid analgesics: a registry-linkage study. Eur J Pain 2023;27:884–95.
1. Hamina A, Odsbu I, Borchgrevink PC, Chen L-C, Clausen T, Espnes KA, Gjesdal K, Handal M, Hartikainen S, Hjellvik V, Holter MTS, Høibø T, Kurita GP, Langaas HC, Lid TG, Nøst TH, Sjøgren P, Skurtveit S. Cohort description: preventing an opioid epidemic in Norway—focusing on treatment of chronic pain (POINT)—a national registry-based study. Clin Epidemiol 2022;14:1477–86.
1. Hamina A, Odsbu I, Hjellvik V, Lid TG, Clausen T, Skurtveit S. Fatal drug overdoses in individuals treated pharmacologically for chronic pain: a nationwide register-based study. Br J Anaesth 2024;132:86–95.
1. Laugesen K, Ludvigsson JF, Schmidt M, Gissler M, Valdimarsdottir UA, Lunde A, Sorensen HT. Nordic health registry-based research: a review of health care systems and key registries. Clin Epidemiol 2021;13:533–54.