uu.seUppsala University Publications
Change search
Link to record
Permanent link

Direct link
BETA
Päären, Aivar
Publications (10 of 14) Show all publications
Alaie, I., Philipson, A., Ssegonja, R., Hagberg, L., Feldman, I., Sampaio, F., . . . Jonsson, U. (2019). Uppsala Longitudinal Adolescent Depression Study (ULADS). BMJ Open, 9(3), Article ID e024939.
Open this publication in new window or tab >>Uppsala Longitudinal Adolescent Depression Study (ULADS)
Show others...
2019 (English)In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 9, no 3, article id e024939Article in journal (Refereed) Published
Abstract [en]

Purpose: To present the Uppsala Longitudinal Adolescent Depression Study, initiated in Uppsala, Sweden, in the early 1990s. The initial aim of this epidemiological investigation was to study the prevalence, characteristics and correlates of adolescent depression, and has subsequently expanded to include a broad range of social, economic and health-related long-term outcomes and cost-of-illness analyses.

Participants: The source population was first-year students (aged 16-17) in upper-secondary schools in Uppsala during 1991-1992, of which 2300 (93%) were screened for depression. Adolescents with positive screening and sex/age-matched peers were invited to a comprehensive assessment. A total of 631 adolescents (78% females) completed this assessment, and 409 subsequently completed a 15year follow-up assessment. At both occasions, extensive information was collected on mental disorders, personality and psychosocial situation. Detailed social, economic and health-related data from 1993 onwards have recently been obtained from the Swedish national registries for 576 of the original participants and an age-matched reference population (N=200 000).

Findings to date: The adolescent lifetime prevalence of a major depressive episode was estimated to be 11.4%. Recurrence in young adulthood was reported by the majority, with a particularly poor prognosis for those with a persistent depressive disorder or multiple somatic symptoms. Adolescent depression was also associated with an increased risk of other adversities in adulthood, including additional mental health conditions, low educational attainment and problems related to intimate relationships.

Future plans: Longitudinal studies of adolescent depression are rare and must be responsibly managed and utilised. We therefore intend to follow the cohort continuously by means of registries. Currently, the participants are approaching mid-adulthood. At this stage, we are focusing on the overall long-term burden of adolescent depression. For this purpose, the research group has incorporated expertise in health economics. We would also welcome extended collaboration with researchers managing similar datasets.

National Category
Psychiatry Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
urn:nbn:se:uu:diva-389609 (URN)10.1136/bmjopen-2018-024939 (DOI)000471144900167 ()30826765 (PubMedID)
Funder
Swedish Research Council, 2014-10092Forte, Swedish Research Council for Health, Working Life and WelfareStiftelsen Söderström - Königska sjukhemmet
Available from: 2019-07-22 Created: 2019-07-22 Last updated: 2019-07-22Bibliographically approved
Bohman, H., Låftman, S. B., Cleland, N., Lundberg, M., Päären, A. & Jonsson, U. (2018). Somatic symptoms in adolescence as a predictor of severe mental illness in adulthood: a long-term community-based follow-up study.. Child and Adolescent Psychiatry and Mental Health, 12, Article ID 42.
Open this publication in new window or tab >>Somatic symptoms in adolescence as a predictor of severe mental illness in adulthood: a long-term community-based follow-up study.
Show others...
2018 (English)In: Child and Adolescent Psychiatry and Mental Health, ISSN 1753-2000, E-ISSN 1753-2000, Vol. 12, article id 42Article in journal (Refereed) Published
Abstract [en]

Background: Somatic symptoms are common and costly for society and correlate with suffering and low functioning. Nevertheless, little is known about the long-term implications of somatic symptoms. The objective of this study was to assess if somatic symptoms in adolescents with depression and in their matched controls predict severe mental illness in adulthood by investigating the use of hospital-based care consequent to different mental disorders.

Methods: The entire school population of 16-17-year-olds in the city of Uppsala, Sweden, was screened for depression in 1991-1993 (n = 2300). Adolescents with positive screenings (n = 307) and matched non-depressed controls (n = 302) participated in a semi-structured diagnostic interview for mental disorders. In addition, 21 different self-rated somatic symptoms were assessed. The adolescents with depression and the matched non-depressed controls were engaged in follow-up through the National Patient Register 17-19 years after the baseline study (n = 375). The outcome measures covered hospital-based mental health care for different mental disorders according to ICD-10 criteria between the participants' ages of 18 and 35 years.

Results: Somatic symptoms were associated with an increased risk of later hospital-based mental health care in general in a dose-response relationship when adjusting for sex, adolescent depression, and adolescent anxiety (1 symptom: OR = 1.63, CI 0.55-4.85; 2-4 symptoms: OR = 2.77, 95% CI 1.04-7.39; ≥ 5 symptoms: OR = 5.75, 95% CI 1.98-16.72). With regards to specific diagnoses, somatic symptoms predicted hospital-based care for mood disorders when adjusting for sex, adolescent depression, and adolescent anxiety (p < 0.05). In adolescents with depression, somatic symptoms predicted later hospital-based mental health care in a dose-response relationship (p < 0.01). In adolescents without depression, reporting at least one somatic symptom predicted later hospital-based mental health care (p < 0.05).

Conclusions: Somatic symptoms in adolescence predicted severe adult mental illness as measured by hospital-based care also when controlled for important confounders. The results suggest that adolescents with somatic symptoms need early treatment and extended follow-up to treat these specific symptoms, regardless of co-occurring depression and anxiety.

National Category
Psychiatry
Research subject
Child and Youth Psychiatry
Identifiers
urn:nbn:se:uu:diva-360238 (URN)10.1186/s13034-018-0245-0 (DOI)000442205600001 ()30123319 (PubMedID)
Funder
Stiftelsen Söderström - Königska sjukhemmetSwedish Society of Medicine
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2018-10-23Bibliographically approved
Päären, A., Bohman, H., von Knorring, L., Olsson, G., von Knorring, A.-L. & Jonsson, U. (2017). Early risk factors for adult bipolar disorder in adolescents with mood disorders: a 15-year follow-up of a community sample. Paper presented at 19th Annual Conference of the International-Society-for-Bipolar-Disorders, MAY 04-07, 2017, Washington, DC. Bipolar Disorders, 19(S1), 63-63
Open this publication in new window or tab >>Early risk factors for adult bipolar disorder in adolescents with mood disorders: a 15-year follow-up of a community sample
Show others...
2017 (English)In: Bipolar Disorders, ISSN 1398-5647, E-ISSN 1399-5618, Vol. 19, no S1, p. 63-63Article in journal, Meeting abstract (Other academic) Published
National Category
Psychiatry
Identifiers
urn:nbn:se:uu:diva-331816 (URN)10.1111/bdi.12479 (DOI)000401266200142 ()
Conference
19th Annual Conference of the International-Society-for-Bipolar-Disorders, MAY 04-07, 2017, Washington, DC
Available from: 2017-10-18 Created: 2017-10-18 Last updated: 2017-10-18Bibliographically approved
Bohman, H., Låftman, S. B., Päären, A. & Jonsson, U. (2017). Parental separation in childhood as a risk factor for depression in adulthood: a community-based study of adolescents screened for depression and followed up after 15 years. BMC Psychiatry, 17, Article ID 117.
Open this publication in new window or tab >>Parental separation in childhood as a risk factor for depression in adulthood: a community-based study of adolescents screened for depression and followed up after 15 years
2017 (English)In: BMC Psychiatry, ISSN 1471-244X, E-ISSN 1471-244X, Vol. 17, article id 117Article in journal (Refereed) Published
Abstract [en]

Background

Earlier research has investigated the association between parental separation and long-term health outcomes among offspring, but few studies have assessed the potentially moderating role of mental health status in adolescence. The aim of this study was to analyze whether parental separation in childhood predicts depression in adulthood and whether the pattern differs between individuals with and without earlier depression.

Methods

A community-based sample of individuals with adolescent depression in 1991–93 and matched non-depressed peers were followed up using a structured diagnostic interview after 15 years. The participation rate was 65% (depressed n = 227; non-depressed controls n = 155). Information on parental separation and conditions in childhood and adolescence was collected at baseline. The outcome was depression between the ages 19–31 years; information on depression was collected at the follow-up diagnostic interview. The statistical method used was binary logistic regression.

Results

Our analyses showed that depressed adolescents with separated parents had an excess risk of recurrence of depression in adulthood, compared with depressed adolescents with non-separated parents. In addition, among adolescents with depression, parental separation was associated with an increased risk of a switch to bipolar disorder in adulthood. Among the matched non-depressed peers, no associations between parental separation and adult depression or bipolar disorder were found.

Conclusions

Parental separation may have long-lasting health consequences for vulnerable individuals who suffer from mental illness already in adolescence.

Keywords
Adolescence, Divorce, Family type, Family structure, Depression, Prospective, Bipolar
National Category
Psychiatry
Research subject
Child and Youth Psychiatry
Identifiers
urn:nbn:se:uu:diva-318965 (URN)10.1186/s12888-017-1252-z (DOI)000397656300002 ()28356107 (PubMedID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2012-1741
Available from: 2017-03-29 Created: 2017-03-29 Last updated: 2017-11-29Bibliographically approved
Bohman, H., Låftman, S. B., Päären, A. & Jonsson, U. (2016). Somatic symptoms in adolescence as a predictor of in-patient care for mental disorders in adulthood. In: : . Paper presented at European Public Health Conference, Vienna, 9-12 November 2016 (pp. 92-92). , 26
Open this publication in new window or tab >>Somatic symptoms in adolescence as a predictor of in-patient care for mental disorders in adulthood
2016 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Psychiatry
Research subject
Child and Youth Psychiatry
Identifiers
urn:nbn:se:uu:diva-318966 (URN)10.1093/eurpub/ckw166.047 (DOI)000398600401069 ()
Conference
European Public Health Conference, Vienna, 9-12 November 2016
Available from: 2017-03-29 Created: 2017-03-29 Last updated: 2017-05-03Bibliographically approved
Päären, A. (2015). Long-Term Health Outcome of Adolescent  Mood Disorders: Focus on Bipolar Disorder. (Doctoral dissertation). Uppsala: Acta Universitatis Upsaliensis
Open this publication in new window or tab >>Long-Term Health Outcome of Adolescent  Mood Disorders: Focus on Bipolar Disorder
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

There has recently been an intense debate about the increased rate of bipolar disorders (BPD) in children and adolescents observed in clinical settings. Thus, there is great interest in child and adolescent symptoms of hypomania and whether these symptoms subsequently will develop into BPD. More knowledge about early signs could give insight into the development of the disorder. There are also concerns that hypomanic symptoms in adolescence indicate excess risk of other health conditions. It has been reported that patients with mood disorders have a high consumption of prescription drugs in different ATC classes.

The primary objective of this thesis was to better understand the mental health outcome of adolescents with hypomania spectrum symptoms and to identify early risk factors for adult bipolar disorder among adolescents with mood disorders. In order to widen the scope and investigate health outcome of mood disorder in general psychopharmacological outcomes were included.

A community sample of adolescents (N=2 300) in the town of Uppsala, Sweden, was screened for depressive symptoms. Both participants with positive screening and matched controls (in total 631) were diagnostically interviewed. Ninety participants reported hypomania spectrum episodes, while another 197 fulfilled the criteria for major depressive disorder (MDD) without a history of a hypomania spectrum episode. A follow-up after 15 years included a blinded diagnostic interview, a self-assessment of personality disorders, and national register data on prescription drugs and health services use. Adolescent mood symptoms, non-mood disorders, and family characteristics were assessed. Univariate and multivariate analyses were used.

The results indicate that the phenomenology of the hypomania spectrum episodes during childhood and adolescence per se does not predict adult bipolar disorder. However, having both affective symptoms during adolescence and a family history of bipolar disorder increases the risk of developing bipolar disorders in adulthood. Disruptive disorder in childhood or adolescence as well as family histories of BPD emerged as significant risk factors that differentiated between the future development of BPD and MDD.

Adolescents with hypomania spectrum episodes and adolescents with MDD do not differ substantially in health outcomes in adulthood. Both groups are at increased risk for subsequent mental health problems, high consumption of prescription drugs, and high health care use, compared with the control group. The high rates of prescription drugs in many ATC classes found among the former depressed females seem to indicate a series of co-morbid somatic illnesses.

Thus, it is important to identify and treat children and adolescents with mood disorders, and carefully follow the continuing course. Characteristics such as disruptive disorders and family history warrant particular attention.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2015. p. 86
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1064
Keywords
adolescent mood disorders, bipolar disorder, long-term follow-up assessment
National Category
Medical and Health Sciences
Research subject
Psychiatry
Identifiers
urn:nbn:se:uu:diva-239835 (URN)978-91-554-9137-6 (ISBN)
Public defence
2015-02-20, Sal IX Universitetshuset, Uppsala Universitet, Uppsala, 08:30 (Swedish)
Opponent
Supervisors
Available from: 2015-01-28 Created: 2015-01-02 Last updated: 2015-03-09
Päären, A., Bohman, H., von Knorring, L., Olsson, G., von Knorring, A.-L. & Jonsson, U. (2014). Early risk factors for adult bipolar disorder in adolescents with mood disorders: A 15-year follow-up of a community sample. BMC Psychiatry, 14(1), 363
Open this publication in new window or tab >>Early risk factors for adult bipolar disorder in adolescents with mood disorders: A 15-year follow-up of a community sample
Show others...
2014 (English)In: BMC Psychiatry, ISSN 1471-244X, E-ISSN 1471-244X, Vol. 14, no 1, p. 363-Article in journal (Refereed) Published
Abstract [en]

Background:  We aimed to outline the early risk factors for adult bipolar disorder (BPD) in adolescents with mood disorders.

Methods: Adolescents (16-17 years old) with mood disorders (n=287; 90 participants with hypomania spectrum episodes and 197 with major depressive disorder [MDD]) were identified from a community sample. Fifteen years later (at 30-33 years of age), mood episodes were assessed (n=194). The risk of developing BPD (n=22), compared with MDD (n=104) or no mood episodes in adulthood (n=68), was estimated via logistic regression. Adolescent mood symptoms, non-mood disorders, and family characteristics were assessed as potential risk factors.

Results: Among the adolescents with mood disorders, a family history of BPD was the strongest predictor of developing BPD compared with having no mood episodes in adulthood (OR=5.94; 95% CI=1.11-31.73), whereas disruptive disorders significantly increased the risk of developing BPD compared with developing MDD (OR=2.94; CI=1.06-8.12). The risk that adolescents with MDD would develop adult BPD, versus having no mood episodes in adulthood, was elevated among those with an early disruptive disorder (OR=3.62; CI=1.09-12.07) or multiple somatic symptoms (OR=6.60; CI=1.70-25.67). Only disruptive disorders significantly predicted adult BPD among adolescents with MDD versus continued MDD in adulthood (OR=3.59; CI=1.17-10.97). Only a few adolescents with hypomania spectrum episodes continued to have BPD as adults, and anxiety disorders appeared to increase this risk.

Conclusions: Although most of the identified potential risk factors are likely general predictors of continued mood disorders, disruptive disorders emerged as specific predictors of developing adult BPD among adolescents with MDD.

Keywords
adolescent mood disorders, bipolar disorder, predictors, long-term follow-up assessment
National Category
Psychiatry
Research subject
Psychiatry
Identifiers
urn:nbn:se:uu:diva-239832 (URN)10.1186/s12888-014-0363-z (DOI)000348156400001 ()25539591 (PubMedID)
Projects
adolescents with mood disorders: A 15-year follow-up of a community sample
Available from: 2015-01-02 Created: 2015-01-02 Last updated: 2017-12-05Bibliographically approved
Päären, A., Bohman, H., von Knorring, A.-L., von Knorring, L., Olsson, G. & Jonsson, U. (2014). Hypomania spectrum disorder in adolescence: a 15-year follow-up of non-mood morbidity in adulthood. BMC Psychiatry, 14, 9
Open this publication in new window or tab >>Hypomania spectrum disorder in adolescence: a 15-year follow-up of non-mood morbidity in adulthood
Show others...
2014 (English)In: BMC Psychiatry, ISSN 1471-244X, E-ISSN 1471-244X, Vol. 14, p. 9-Article in journal (Refereed) Published
Abstract [en]

Background:

We investigated whether adolescents with hypomania spectrum episodes have an excess risk of mental and physical morbidity in adulthood, as compared with adolescents exclusively reporting major depressive disorder (MDD) and controls without a history of adolescent mood disorders.

Methods:

A community sample of adolescents (N = 2 300) in the town of Uppsala, Sweden, was screened for depressive symptoms. Both participants with positive screening and matched controls (in total 631) were diagnostically interviewed. Ninety participants reported hypomania spectrum episodes (40 full-syndromal, 18 with brief episode, and 32 subsyndromal), while another 197 fulfilled the criteria for MDD without a history of a hypomania spectrum episode. A follow up after 15 years included a blinded diagnostic interview, a self-assessment of personality disorders, and national register data on prescription drugs and health services use. The participation rate at the follow-up interview was 71% (64/90) for the hypomania spectrum group, and 65.9% (130/197) for the MDD group. Multiple imputation was used to handle missing data.

Results:

The outcomes of the hypomania spectrum group and the MDD group were similar regarding subsequent non-mood Axis I disorders in adulthood (present in 53 vs. 57%). A personality disorder was reported by 29% of the hypomania spectrum group and by 20% of the MDD group, but a statistically significant difference was reached only for obsessive-compulsive personality disorder (24 vs. 14%). In both groups, the risk of Axis I disorders and personality disorders in adulthood correlated with continuation of mood disorder. Prescription drugs and health service use in adulthood was similar in the two groups. Compared with adolescents without mood disorders, both groups had a higher subsequent risk of psychiatric morbidity, used more mental health care, and received more psychotropic drugs.

Conclusions:

Although adolescents with hypomania spectrum episodes and adolescents with MDD do not differ substantially in health outcomes, both groups are at increased risk for subsequent mental health problems. Thus, it is important to identify and treat children and adolescents with mood disorders, and carefully follow the continuing course.

Keywords
Adolescence, Hypomania spectrum, Follow up, Comorbidity
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:uu:diva-218944 (URN)10.1186/1471-244X-14-9 (DOI)000330075000002 ()
Available from: 2014-02-27 Created: 2014-02-20 Last updated: 2017-12-05Bibliographically approved
Päären, A., von Knorring, A.-L., Olsson, G., von Knorring, L., Bohman, H. & Jonsson, U. (2013). Hypomania spectrum disorders from adolescence to adulthood: A 15-year follow-up of a community sample. Journal of Affective Disorders, 145(2), 190-199
Open this publication in new window or tab >>Hypomania spectrum disorders from adolescence to adulthood: A 15-year follow-up of a community sample
Show others...
2013 (English)In: Journal of Affective Disorders, ISSN 0165-0327, E-ISSN 1573-2517, Vol. 145, no 2, p. 190-199Article in journal (Refereed) Published
Abstract [en]

Background: There is a lack of scientific knowledge about the broader spectrum of hypomania in adolescence and the course over time. To investigate this, we used longitudinal data spanning from adolescence to age 31 years.

Method: A community sample of adolescents (N=2300) was screened for depressive symptoms. Adolescents (16-17 years) with a positive screening and matched controls were interviewed with a structured diagnostic interview. A blinded follow-up assessment was conducted 15 years later, with a structured diagnostic interview covering the age span 19-31 years. Questions about treatment and family history were included.

Results: Ninety adolescents (16-17 years) with a lifetime hypomania spectrum episode (3.9% of the total sample) were identified: 40 with fullsyndromal, 18 with brief-episode (<4 day), and 32 with subsyndromal (1-2 main symptoms and 1-2 additional symptoms) hypomania. The hypomania symptoms reported by the fullsyndromal and the brief-episode groups were similar, whereas the subsyndromal group per definition reported fewer symptoms. Of the 90 adolescents with a hypomania spectrum episode, 64 (71%) participated in the follow-up interview. Mania in adulthood was reported by 2 (3%), hypomania by an additional 4 (6%), and major depression by 38 (59%). Incidence of mood episodes in adulthood did not differ between the subgroups of hypomania spectrum.

Limitations: 29% of the participants with hypomania spectrum were lost to follow-up.

Conclusion: The results indicate that only a small proportion of adolescents with hypomania spectrum episodes continue to have (hypo)mania in adulthood. Thus, maintenance or prophylactic treatment does not seem warranted for this group.

Keywords
Child and adolescent hypomania, Mood disorders, Long-term follow-up
National Category
Psychiatry
Research subject
Psychiatry
Identifiers
urn:nbn:se:uu:diva-196000 (URN)10.1016/j.jad.2012.07.031 (DOI)000314092100007 ()
Available from: 2013-03-04 Created: 2013-03-04 Last updated: 2017-12-06Bibliographically approved
Päären, A., von Knorring, L., Jonsson, U., Bohman, H., Olsson, G. & von Knorring, A.-L. (2012). Drug prescriptions of adults with adolescent depression in a community sample. Pharmacoepidemiology and Drug Safety, 21(2), 130-136
Open this publication in new window or tab >>Drug prescriptions of adults with adolescent depression in a community sample
Show others...
2012 (English)In: Pharmacoepidemiology and Drug Safety, ISSN 1053-8569, E-ISSN 1099-1557, Vol. 21, no 2, p. 130-136Article in journal (Refereed) Published
Abstract [en]

Purpose

The prescription drugs have, to our knowledge, not been much studied in epidemiological samples with long-term follow-up. Accordingly, our purpose was to analyze the use of prescription drugs in adults with adolescent depression.

Methods

A population-based cohort of adolescents (n = 2465) was screened for the presence of depressive symptoms and diagnosed according to a structured interview. Totally, 362 individuals were identified as depressed and compared with 250 non-depressed controls. The prescription drugs were evaluated at the age of 29-31 years from a register kept by the National Health and Welfare Board.

Results

The formerly depressed females received significantly more prescription drugs, such as antidepressants, antiepileptics, antibacterials, antimycotics, and antihistamines for systemic use as well as other drugs, compared with controls (15.6 +/- 27.4 vs 8.2 +/- 7.4 recipes, p < 0.001). Formerly depressed males did not differ from controls regarding prescription drugs.

Conclusions

The females but not males with adolescent depression subsequently received more prescription drugs than non-depressed peers. Depressed female adolescents received more psychotropic and non-psychotropic drugs later in life compared to the non-depressed. This might be as a result of physical illnesses, different treatment-seeking behaviors, or somatizing reactions.

Keywords
adolescent depression, follow-up, prescription drugs
National Category
Medical and Health Sciences
Research subject
Child and Youth Psychiatry
Identifiers
urn:nbn:se:uu:diva-169101 (URN)10.1002/pds.2120 (DOI)000299549600002 ()
Available from: 2012-02-27 Created: 2012-02-23 Last updated: 2017-12-07Bibliographically approved
Organisations

Search in DiVA

Show all publications