Back to Journals » Clinical Epidemiology » Volume 13

Identifying and Characterizing Children of Parents with a Serious Illness Using Survey and Register Data

Authors Jørgensen SE, Michelsen SI, Andersen A, Tolstrup JS, Thygesen LC

Received 1 December 2020

Accepted for publication 14 February 2021

Published 1 April 2021 Volume 2021:13 Pages 253—263


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Eyal Cohen

Sanne Ellegård Jørgensen,1 Susan I Michelsen,1 Anette Andersen,2 Janne S Tolstrup,1 Lau C Thygesen1

1National Institute of Public Health, University of Southern Denmark, Copenhagen, 1455, Denmark; 2Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus N, 8200, Denmark

Correspondence: Sanne Ellegård Jørgensen
University of Southern Denmark, Studiestræde 6, Copenhagen, 1455, Denmark
Tel + 0045 65 50 78 44
Email [email protected]

Purpose: To estimate the prevalence and characterize children and adolescents aged 0– 21 years with a physically or mentally ill parent based on registers. Further, to explore the use of register and survey data to identify parental serious illness.
Methods: The study is based on: 1) a 20% register sample of children and adolescents aged 0– 21 in 2014; and 2) survey data from the Danish Youth Profile 2014 including 63,437 youth education students linked to registers. In registers, parental physical illness comprised hospital diagnoses included in the Charlson Comorbidity Index, and parental mental illness encompassed all mental diagnosis in the registers. Information about socioeconomic and demographic characteristics and use of health care services was retrieved from national registers. In the survey, students were asked if they had experienced serious illness of a parent.
Results: In the register sample of 0– 21-year-olds, 25.3% had a parent with a physical or mental diagnosis, the prevalence increasing with age of the child. Compared to children without parental illness, children with an ill parent more frequently had unemployed parents, lower parental educational level, and a chronic medical condition. Analyses of the discrepancies between register and survey data revealed that 9% of the adolescents were identified as having an ill parent in both data sources and 64.1% had no identified ill parents. Moreover, a higher frequency of parental primary health care service use was seen for adolescents with an ill parent, across identification method, indicating that both methods identify adolescents with an ill parent.
Conclusion: The social inequality and elevated frequency of health problems among children and adolescents with an ill parent, underline the vulnerability of this population. Parental illness can be identified from both parental hospital diagnoses as well as self-reported by adolescents, however the two methods detect different populations. Both methods have several limitations and would benefit from further refinement and validation.

Keywords: parental illness, childhood adversity, characteristics, register data, survey data, social inequality

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]