Finnish Register of Congenital Malformations (Finland) **

Database Contact Data

Dr. Sonja Kiuru-Kuhlefelt
Chief Physician
National Institute for Health and Welfare, Finland (THL)
Information Services
Register of Congenital Malformations
P.O. Box 30
00271 Helsinki
FINLAND
Email: sonja.kiuru-kuhlefelt@thl.fi
Phone: +358 29 524 7524

Alternate Contact

National Institute for Health and Welfare, Finland (THL)
PO Box 30
Mannerheimintie 166
FI-00271 Helsinki
FINLAND
Phone: +358 29 524 6000

References of Studies Using/Describing Database

1. Björkstedt SM, Koponen H, Kautiainen H, Gissler M M, Pennanen P, Eriksson JG, Laine MK. Maternal mental disorders, psychotropic drugs, socioeconomic status, and offspring congenital anomalies. J Int Med Res. 2025 Jan;53(1):3000605241306902.

2. Elfving P, Kariniemi S, Kautiainen H, Rantalaiho V, Virta LJ, Puolakka K, Laine MK. Pregnancies in patients with systemic lupus erythematosus during 2000-2018 in Finland: a case-control study. Rheumatol Int. 2024 Jun;44(6):1101-1109.

3. Heiskanen S, Helenius I, Syvänen J, Kemppainen T, Löyttyniemi E, Ahonen M, Gissler M, Raitio A. Maternal risk factors for congenital vertebral formation and mixed defects: A population-based case-control study. J Child Orthop. 2024 Mar 20;18(3):340-345.

4. Leppänen M, Pape B, Ripatti L, Karukivi M, Haataja L, Rautava P. Burden of mental, behavioral, and neurodevelopmental disorders in the Finnish most preterm children: a national register study. Eur Child Adolesc Psychiatry. 2024 Feb;33(2):431-438.

5. Cohen JM, Alvestad S, Suarez EA, Schaffer A, Selmer RM, Havard A, Bateman BT, Cesta CE, Zoega H, Odsbu I, Huybrechts KF, Kjerpeseth LJ, Straub L, Leinonen MK, Bjørk MH, Nørgaard M, Gissler M, Ulrichsen SP, Hernandez-Diaz S, Tomson T, Furu K. Comparative Risk of Major Congenital Malformations With Antiseizure Medication Combinations vs Valproate Monotherapy in Pregnancy. Neurology. 2024 Jan 23;102(2):e207996.

6. Kinnunen J, Nikkinen H, Keikkala E, Mustaniemi S, Gissler M, Laivuori H, Eriksson JG, Kaaja R, Pouta A, Kajantie E, Vääräsmäki M. Gestational diabetes is associated with the risk of offspring's congenital anomalies: a register-based cohort study. BMC Pregnancy Childbirth. 2023 Oct 3;23(1):708.

7. Kjerpeseth LJ, Cesta CE, Furu K, Engeland A, Gissler M, Gulseth HL, Karlstad Ø, Leinonen MK, Pazzagli L, Zoega H, Cohen JM. Metformin Versus Insulin and Risk of Major Congenital Malformations in Pregnancies With Type 2 Diabetes: A Nordic Register-Based Cohort Study. Diabetes Care. 2023 Aug 1;46(8):1556-1564.

8. Claridge H, Tan J, Loane M, Garne E, Barisic I, Cavero-Carbonell C, Dias C, Gatt M, Jordan S, Khoshnood B, Kiuru-Kuhlefelt S, Klungsoyr K, Mokoroa Carollo O, Nelen V, Neville AJ, Pierini A, Randrianaivo H, Rissmann A, Tucker D, de Walle H, Wertelecki W, Morris JK. Ethics and legal requirements for data linkage in 14 European countries for children with congenital anomalies. BMJ Open. 2023 Jul 27;13(7):e071687.

9. Raitio A, Heiskanen S, Syvänen J, Leinonen MK, Kemppainen T, Löyttyniemi E, Ahonen M, Gissler M, Helenius I. Maternal Risk Factors for Congenital Vertebral Anomalies: A Population-Based Study. J Bone Joint Surg Am. 2023 Jul 19;105(14):1087-1092.

10. Cohen JM, Alvestad S, Cesta CE, Bjørk MH, Leinonen MK, Nørgaard M, Einarsdóttir K, Engeland A, Gissler M, Karlstad Ø, Klungsøyr K, Odsbu I, Reutfors J, Selmer RM, Tomson T, Ulrichsen SP, Zoega H, Furu K. Comparative Safety of Antiseizure Medication Monotherapy for Major Malformations. Ann Neurol. 2023 Mar;93(3):551-562.

Medical Birth Register of Denmark (Denmark)

Database Contact Data

The Danish Health Data Agency
Ørestads Boulevard 5
2300 Copenhagen S
DENMARK
Email: forskerservice@sundhedsdata.dk   
Phone: +45 3218 3900 [9.30 AM -12.00 AM CET (UTC+1)]

Alternate Contact

If you have any technical or data-related questions, please contact the LPR team.
Email: LPRdata@sundhedsdata.dk

References of Studies Using/Describing Database

1. Acker S, Hoffmann CH, Hansen LK, Glavind J, Jeppegaard M, Krebs L. Risk of Spontaneous Preterm Birth in a Subsequent Pregnancy After Full Dilatation Caesarean Birth: A Nationwide Cohort Study. BJOG. 2025 Oct;132(11):1585-1593.

2. Broe A, Pottegård A, Munk-Olsen T, Hallas J, Bliddal M, Petersen I, Damkier P. Prescription Drugs in Pregnancy and Congenital Malformations: A Population-Based Safety Screening Study. Pharmacoepidemiol Drug Saf. 2025 Sep;34(9):e70211.

3. Yin C, Adenekan TA, Deng C, Hansen J, Iwundu CN, Heck JE. Application of an obstetric comorbidity index to predict childhood cancer risk: a population based case-control study in Denmark. Br J Cancer. 2025 Jul 21. doi: 10.1038/s41416-025-03120-3. Epub ahead of print.

4. Andersen M, Matthiesen NB, Murra M, Nielsen SY, Henriksen TB. Early-Onset Neonatal Infection and Epilepsy in Children. JAMA Netw Open. 2025 Jul 1;8(7):e2519090.

5. Kildegaard H, Jensen A, Andersen PHS, Dalby T, Gram MA, Lidegaard Ø, Stensballe LG. Safety of pertussis vaccination in pregnancy and effectiveness in infants: a Danish national cohort study 2019-2023. Clin Microbiol Infect. 2025 Jun;31(6):995-1002.

6. Sejbaek CS, Nørtoft Frankel H, Flachs EM, Hougaard KS, Mehlum IS, Soegaard Toettenborg S, Madsen IEH, Bonde JPE, Begtrup LM. Physical workload during pregnancy and adverse pregnancy outcomes: results from a Danish nationwide occupational register-based pregnancy cohort (DOC*X-Generation). Occup Environ Med. 2025 Apr 16;82(2):53-60.

7. Brandt S, Thorsen J, Rasmussen MA, Chawes B, Bønnelykke K, Blaser MJ, Sevelsted A, Stokholm J. Use of antibiotics in early life and development of diseases in childhood: nationwide registry study. BMJ Med. 2025 Mar 11;4(1):e001064.

8. Pasanen TP, Tiittanen P, Roswall N, Persson Waye K, Selander J, Sanchez Martinez N, Sjöström M, Vincens N, Ögren M, Aasvang GM, Evandt J, Krog NH, Weyde KV, Khan J, Gissler M, Lindstrøm JC, Poulsen AH, Pershagen G, Sorensen M, Lanki T. Occupational noise exposure and maternal pregnancy complications: register-based cohort from urban areas in four Nordic countries. Occup Environ Med. 2025 Feb 12;81(12):603-609.

9. Vegrim HM, Dreier JW, Igland J, Alvestad S, Gilhus NE, Gissler M, Leinonen MK, Tomson T, Zoega H, Christensen J, Bjørk MH. High-dose folic acid use and cancer risk in women who have given birth: A register-based cohort study. Epilepsia. 2025 Jan;66(1):75-88.

10. Wiegers HMG, Körmendiné Farkas D, Horváth-Puhó E, Middeldorp S, van Es N, Sørensen HT. Incidence and prognosis of superficial vein thrombosis during pregnancy and the post-partum period: a Danish nationwide cohort study. Lancet Haematol. 2023 May;10(5):e359-e366.

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