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Kölblinger F, Schönthaler EMD, Baranyi A, Stross T, Fellendorf FT, von Lewinski D, Queissner R, Reininghaus EZ, Dalkner N. Better understanding of c-reactive protein and leukocytes in psychiatric inpatients with affective disorders: A biopsychosocial approach. World J Clin Cases 2024; 12:3824-3836. [DOI: 10.12998/wjcc.v12.i19.3824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/07/2024] [Accepted: 05/27/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Affective disorders (AD) have been linked to inflammatory processes, although the underlying mechanisms of this relationship are still not fully elucidated. It is hypothesized that demographic, somatic, lifestyle, and personality variables predict inflammatory parameters in AD.
AIM To identify biopsychosocial factors contributing to inflammation in AD measured with two parameters, C-reactive protein (CRP) and leukocytes.
METHODS This observational study investigated 186 hospital inpatients diagnosed with AD using demographic parameters, serum inflammatory markers, somatic variables, psychological questionnaires, and lifestyle parameters. Hierarchical regression analyses were used to predict inflammatory markers from demographic, somatic, lifestyle, and personality variables.
RESULTS Analyses showed that 33.8% of the variance of CRP was explained by body mass index and other somatic medication (e.g. anti-diabetics), age and education, and age of affective disorder diagnosis. For leukocytes, 20.1% of the variance was explained by smoking, diet, metabolic syndrome (MetS), and anti-inflammatory medication (e.g. non-steroidal anti-inflammatory drugs). Other psychiatric or behavioural variables did not reach significance.
CONCLUSION Metabolic components seem important, with mounting evidence for a metabolic affective disorder subtype. Lifestyle modifications and psychoeducation should be employed to prevent or treat MetS in AD.
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Affiliation(s)
- Felix Kölblinger
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Elena MD Schönthaler
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Andreas Baranyi
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Tatjana Stross
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Frederike T Fellendorf
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Dirk von Lewinski
- Clinical Department of Cardiology, Medical University of Graz, Graz 8036, Austria
| | - Robert Queissner
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Eva Z Reininghaus
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
| | - Nina Dalkner
- Clinical Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz 8036, Austria
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Stephan Y, Sutin AR, Terracciano A. Personality traits and the risk of urinary incontinence: Evidence from three longitudinal samples. Int J Geriatr Psychiatry 2024; 39:e6084. [PMID: 38558175 DOI: 10.1002/gps.6084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE Urinary incontinence (UI) is a common condition with a substantial negative impact on older adults' quality of life. This study examines whether individual differences in behavioral, cognitive, and emotional traits assessed by the five major dimensions of personality are related to the risk of concurrent and incident UI. METHODS Participants were older women and men (N > 26,000) from the Midlife in the United States Survey, the Health and Retirement Study, and the English Longitudinal Study of Aging. In each cohort, personality traits (measured with the Midlife Development Inventory) and demographic (age, sex, education, and race), clinical (body mass index, diabetes, blood pressure), and behavioral (smoking) factors were assessed at baseline. UI was assessed at baseline and again 8-20 years later. Results for each cohort were combined in random-effect meta-analyses. RESULTS Consistently across cohorts, higher neuroticism and lower conscientiousness were related to a higher risk of concurrent and incident UI. To a lesser extent, extraversion, openness, and agreeableness were also related to lower risk of concurrent and incident UI. BMI, diabetes, blood pressure, and smoking partially accounted for these associations. There was little evidence that age or sex moderated the associations. CONCLUSIONS The present study provides novel, robust, and replicable evidence linking personality traits to UI. The higher vulnerability for UI for individuals who score higher on neuroticism and lower on conscientiousness is consistent with findings for other multifactorial geriatric syndromes. Personality traits can help identify individuals at risk and may help contextualize the clinical presentation of comorbid emotional, cognitive, and behavioral symptoms.
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Affiliation(s)
| | - Angelina R Sutin
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Antonio Terracciano
- Department of Geriatrics, College of Medicine, Florida State University, Tallahassee, Florida, USA
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Stephan Y, Sutin AR, Luchetti M, Aschwanden D, Terracciano A. Personality and Cognition: The Mediating Role of Inflammatory Markers. J Gerontol B Psychol Sci Soc Sci 2024; 79:gbad152. [PMID: 37813576 PMCID: PMC10745263 DOI: 10.1093/geronb/gbad152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Indexed: 10/17/2023] Open
Abstract
OBJECTIVES Five-Factor Model personality traits are associated consistently with cognition. Inflammation has been hypothesized as a biological pathway in this association, but this assumption has yet to be tested. The present study tested inflammatory markers as mediators between personality traits and cognition. METHODS Participants were from the Health and Retirement Study (HRS; N = 4,364; 60% women; mean age = 64.48 years, standard deviation = 8.79). Personality traits and demographic factors were assessed in 2010/2012. Data on inflammatory markers (high-sensitivity C-reactive protein [hsCRP], interleukin-6 [IL-6], soluble tumor necrosis factor 1 (sTNFR1), interleukin-10 [IL-10], interleukin-1 receptor antagonist [IL-1Ra], and transforming growth factor [TGF]-β1) were obtained in 2016 from the HRS Venuous Blood Study. Cognition was assessed in 2020 using the modified Telephone Interview for Cognitive Status. RESULTS Higher neuroticism was related to lower cognition at follow-up, whereas higher extraversion, openness, agreeableness, and conscientiousness were associated with better cognition. Higher extraversion and higher conscientiousness were related to lower hsCRP, IL-6, IL-10, IL-1Ra, and sTNFR1, and higher openness was associated with lower IL-10, IL-1Ra, and sTNFR1 and to higher soluble TGF-β1. Lower sTNFR1 partially mediated the associations between conscientiousness, extraversion, and openness and cognition at follow-up, explaining an estimated 4%-12% of these associations. The mediating role of sTNFR1 persisted when physical activity and depressive symptoms were included as additional mediators. DISCUSSION The present study provides new evidence on personality and inflammatory markers. Consistent with the inflammation hypothesis, the sTNFR1 finding supports a potential biological pathway between personality and cognition.
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Affiliation(s)
| | - Angelina R Sutin
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Martina Luchetti
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Damaris Aschwanden
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Geneva, Switzerland
- Department of Geriatrics, College of Medicine, Florida State University, Tallahassee, Florida, USA
| | - Antonio Terracciano
- Department of Geriatrics, College of Medicine, Florida State University, Tallahassee, Florida, USA
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Arumäe K, Mõttus R, Vainik U. Body mass predicts personality development across 18 years in middle to older adulthood. J Pers 2023; 91:1395-1409. [PMID: 36718127 DOI: 10.1111/jopy.12816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/26/2022] [Accepted: 01/25/2023] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Various personality traits have longitudinal relations with body mass index (BMI), a measure of body weight and a risk factor for numerous health concerns. We tested these associations' compatibility with causality in either direction. METHOD Using three waves of the Wisconsin Longitudinal Study (N = 12,235, Mage = 53.33 at baseline), we tested how accurately the Five-Factor Model personality domains and their items could collectively predict BMI and change in it with elastic net models. With multilevel models, we tested (a) bidirectional and (b) within-person associations between BMI and personality traits. RESULTS The five domains were able to predict concurrent (r = 0.08), but not future BMI. Twenty-nine personality items predicted concurrent and future BMI at r = 0.21 and r = 0.16 to 0.25, respectively. Neither the domains nor items could collectively predict change in BMI. Similarly, no individual trait predicted change in BMI, but BMI predicted changes in Conscientiousness, Agreeableness, and several items (|b*| = 0.03 to 0.08). BMI had within-person correlations with these same traits; time-invariant third factors like genetics or childhood environments therefore could not (fully) account for their relations. CONCLUSIONS Body weight may contribute to adults' personality development, but the reverse appears less likely.
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Affiliation(s)
- Kadri Arumäe
- Institute of Psychology, University of Tartu, Tartu, Estonia
| | - René Mõttus
- Institute of Psychology, University of Tartu, Tartu, Estonia
- Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Uku Vainik
- Institute of Psychology, University of Tartu, Tartu, Estonia
- Institute of Genomics, University of Tartu, Tartu, Estonia
- Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
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Stephan Y, Sutin AR, Luchetti M, Aschwanden D, Terracciano A. Personality and Risk of Incident Stroke in 6 Prospective Studies. Stroke 2023; 54:2069-2076. [PMID: 37325920 PMCID: PMC10524767 DOI: 10.1161/strokeaha.123.042617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/12/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND A large literature has examined a broad range of factors associated with increased risk of stroke. Few studies, however, have examined the association between personality and stroke. The present study adopted a systematic approach using a multi-cohort design to examine the associations between 5-Factor Model personality traits (neuroticism, extraversion, openness, agreeableness, and conscientiousness) and incident stroke using data from 6 large longitudinal samples of adults. METHODS Participants (age range: 16-104 years old, N=58 105) were from the MIDUS (Midlife in the United States) Study, the HRS (Health and Retirement Study), The US (Understanding Society) study, the WLS (Wisconsin Longitudinal Study), the NHATS (National Health and Aging Trends Study), and the LISS (Longitudinal Internet Studies for the Social Sciences). Personality traits, demographic factors, clinical and behavioral risk factors were assessed at baseline; stroke incidence was tracked over 7 to 20 years follow-up. RESULTS Meta-analyses indicated that higher neuroticism was related to a higher risk of incident stroke (hazard ratio, 1.15 [95% CI, 1.10-1.20]; P<0.001), whereas higher conscientiousness was protective (HR, 0.89 [95% CI, 0.85-0.93]; P<0.001). Additional meta-analyses indicated that BMI, diabetes, blood pressure, physical inactivity, and smoking as additional covariates partially accounted for these associations. Extraversion, openness, and agreeableness were unrelated to stroke incidence. CONCLUSIONS Similar to other cardiovascular and neurological conditions, higher neuroticism is a risk factor for stroke incidence, whereas higher conscientiousness is a protective factor.
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Affiliation(s)
| | - Angelina R. Sutin
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Martina Luchetti
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Damaris Aschwanden
- Department of Geriatrics, College of Medicine, Florida State University, USA
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Switzerland
| | - Antonio Terracciano
- Department of Geriatrics, College of Medicine, Florida State University, USA
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Stephan Y, Sutin AR, Luchetti M, Aschwanden D, Terracciano A. Personality and aging-related immune phenotype. Psychoneuroendocrinology 2023; 153:106113. [PMID: 37120948 DOI: 10.1016/j.psyneuen.2023.106113] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/12/2023] [Accepted: 04/16/2023] [Indexed: 05/02/2023]
Abstract
An aging-related immune phenotype (ARIP) has been defined as a decrease in naïve T cells (TN) relative to the accumulation of memory T cells (TM). Recent research implicates ARIP measures, such as CD4 +TN/TM and CD8 +TN/TM ratios, in multimorbidity and mortality. This study examined whether psychological dispositions that assess how people think, feel, and behave are related to CD4 +TN/TM and CD8 +TN/TM. Participants were adults aged 50-104 years (N = 4798; 58% women, Mean Age= 67.95, SD= 9.56) from the Health and Retirement Study. Data on CD4 +TN/TM and CD8 +TN/TM were obtained in 2016. Data on personality, demographic factors, and potential clinical (body mass index, disease burden), behavioral (smoking, alcohol, physical activity), psychological (depressive symptoms, stress), and biological (cytomegalovirus IgG antibodies) mediating factors were obtained in 2014/2016. Controlling for demographic factors, higher conscientiousness was related to higher CD4 +TN/TM and CD8 +TN/TM. To a lesser extent, higher neuroticism and lower extraversion were associated with lower CD4 +TN/TM. Physical activity, and to a lesser extent BMI and disease burden, were the most robust mediators between personality and ARIP measures. Cytomegalovirus IgG level mediated the association between conscientiousness and both CD4 +TN/TM and CD8 +TN/TM. This study provides novel evidence that personality is related to ARIP. Higher conscientiousness and, to a lesser extent, higher extraversion may be protective against age-related immunophenotype change, whereas neuroticism may be a risk factor.
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Affiliation(s)
| | - Angelina R Sutin
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Martina Luchetti
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Damaris Aschwanden
- Department of Geriatrics, College of Medicine, Florida State University, USA; Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Switzerland
| | - Antonio Terracciano
- Department of Geriatrics, College of Medicine, Florida State University, USA
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Stephan Y, Sutin AR, Luchetti M, Aschwanden D, Terracciano A. The mediating role of Vitamin D in the association between personality and memory: Evidence from two samples. Biol Psychol 2023; 178:108525. [PMID: 36806675 PMCID: PMC10106409 DOI: 10.1016/j.biopsycho.2023.108525] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 02/21/2023]
Abstract
Five-Factor Model (FFM) personality traits are consistently related to cognition in old age. However, little is known about the biological mediators of this association. The present study examined whether levels of Vitamin D mediated the association between personality and memory. Participants were adults aged 50-96 years from the Health and Retirement Study (HRS, N = 5229) and the English Longitudinal Study of Ageing (ELSA, N = 4249). In HRS, personality and demographic factors were assessed in 2012/2014, Vitamin D was assessed in 2016, and memory was assessed in 2018. In ELSA, personality and demographic factors were obtained in 2010/2011, Vitamin D was measured in 2012/2013, and memory was assessed in 2014/2015. In both samples, higher extraversion and conscientiousness were related to higher levels of Vitamin D, whereas higher neuroticism was related to lower Vitamin D. In both samples, higher Vitamin D partly mediated the association between both higher extraversion and conscientiousness and better memory. The association between higher neuroticism and worse memory at follow-up was partially mediated by lower Vitamin D in the HRS and ELSA. Vitamin D did not mediate the association between higher openness and better memory. The present study extends the personality-cognition literature by providing new replicable evidence that Vitamin D is a biological mediator.
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Affiliation(s)
| | - Angelina R Sutin
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Martina Luchetti
- Department of Behavioral Sciences and Social Medicine, College of Medicine, Florida State University, USA
| | - Damaris Aschwanden
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Switzerland; Department of Geriatrics, College of Medicine, Florida State University, USA
| | - Antonio Terracciano
- Department of Geriatrics, College of Medicine, Florida State University, USA
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Wright AJ, Jackson JJ. Is parent personality associated with adolescent outcomes for their child? A response surface analysis approach. INFANT AND CHILD DEVELOPMENT 2023. [DOI: 10.1002/icd.2395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Amanda J. Wright
- Psychological & Brain Sciences Washington University in St. Louis St. Louis Missouri USA
| | - Joshua J. Jackson
- Psychological & Brain Sciences Washington University in St. Louis St. Louis Missouri USA
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Wright AJ, Litwin AW, Jackson JJ. Compensatory couple effects: How a spouse’s life goals impact one’s own career and health outcomes. JOURNAL OF RESEARCH IN PERSONALITY 2023. [DOI: 10.1016/j.jrp.2023.104350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Bastelica T, Lespine LF, Rouch I, Tadri M, Dorey JM, Strippoli MPF, d'Amato T, von Gunten A, Preisig M, Rey R. Network analysis of the associations between personality traits, cognitive functioning, and inflammatory markers in elderly individuals without dementia. Front Aging Neurosci 2023; 15:1093323. [PMID: 37168718 PMCID: PMC10166137 DOI: 10.3389/fnagi.2023.1093323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/24/2023] [Indexed: 05/13/2023] Open
Abstract
Introduction Lower cognitive functioning in old age has been associated with personality traits or systemic inflammatory markers. Associations have also been found between personality traits and inflammatory markers. However, no study has explored the inter-relationships between these three components simultaneously. The present study aims to better understand the inter-relationships among personality traits, inflammatory markers, and cognitive performance in elderly individuals without dementia. Methods This study utilizes a network analysis approach, a statistical method that allows visualization of the data's unique pairwise associations. We performed a cross-sectional analysis on 720 elderly individuals without dementia, using data from Colaus|PsyColaus, a population-based study conducted in Lausanne, Switzerland. The Revised NEO Five-Factor Inventory (NEO-FFI-R) was used to assess personality traits, and interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) were used as peripheral inflammatory markers. Cognitive domains were investigated using the Mini-Mental State Examination (MMSE), the Verbal Fluency Test, the Stroop Test, the DO40, and the Free and Cued Selective Reminding (FCSR) test. Results Openness was associated with verbal fluency and Agreeableness with immediate free recall. In contrast, no association between inflammatory markers and personality traits or cognition was identified. Discussion In elderly individuals without dementia, a high level of Openness or Agreeableness was associated with executive functioning/semantic memory and episodic memory, respectively.
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Affiliation(s)
- Thomas Bastelica
- Centre Hospitalier Le Vinatier, Bron, France
- INSERM, U1028; CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, Lyon, France
- *Correspondence: Thomas Bastelica,
| | - Louis-Ferdinand Lespine
- Centre Hospitalier Le Vinatier, Bron, France
- INSERM, U1028; CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, Lyon, France
| | - Isabelle Rouch
- INSERM U1219, Bordeaux Population Health Centre Recherche (BPH), Bordeaux, France
- Memory Clinical and Research Center of Saint Etienne (CMRR), Neurology Unit, University Hospital of Saint Etienne, Saint-Etienne, France
| | - Myriam Tadri
- Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Jean-Michel Dorey
- Centre Hospitalier Le Vinatier, Bron, France
- INSERM, Brain Dynamics and Cognition, Lyon Neuroscience Research Center, Lyon, France
| | | | - Thierry d'Amato
- Centre Hospitalier Le Vinatier, Bron, France
- INSERM, U1028; CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, Lyon, France
| | - Armin von Gunten
- Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Martin Preisig
- Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Romain Rey
- Centre Hospitalier Le Vinatier, Bron, France
- INSERM, U1028; CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, Lyon, France
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Wright AJ, Jackson JJ. Childhood temperament and adulthood personality differentially predict life outcomes. Sci Rep 2022; 12:10286. [PMID: 35717439 PMCID: PMC9206675 DOI: 10.1038/s41598-022-14666-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 05/17/2022] [Indexed: 11/09/2022] Open
Abstract
Debate has long surrounded whether temperament and personality are distinct sets of individual differences or are rather two sides of the same coin. To the extent that there are differences, it could indicate important developmental insights concerning the mechanisms responsible for linking traits with outcomes. One way to test this is to examine the joint and incremental predictive validity of temperament and personality in the same individuals across time. Using a longitudinal sample spanning 3 decades starting at infancy and followed up to 37 years old (N = 7081), we ran a series of Bayesian generalized linear models with measures of childhood temperament and adult-based personality to predict outcomes in several life domains. Results indicated that while each set of individual differences were often related to the same outcomes, there were instances in which temperament provided incremental validity above adult personality, ranging from 2 to 10% additional variance explained. Personality in childhood explained the most variance for outcomes such as cognitive ability and educational attainment whereas personality performed best for outcomes such as health status, substance use, and most internalizing outcomes. These findings indicate childhood and adulthood assessments of personality are not redundant and that a lifespan approach is needed to understand fully understand life outcomes.
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Oltmanns JR, Ruggero C, Miao J, Waszczuk M, Yang Y, Clouston SAP, Bromet EJ, Luft BJ, Kotov R. The Role of Personality in the Mental and Physical Health of World Trade Center Responders: Self- versus Informant-Reports. Clin Psychol Sci 2022; 1:10.31234/osf.io/c4gbf. [PMID: 36407479 PMCID: PMC9670015 DOI: 10.31234/osf.io/c4gbf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Personality is linked to important health outcomes, but most prior studies have relied on self-reports, making it possible that shared-method variance explains the associations. The present study examined self- versus informant-reports of personality and multi-method outcomes. World Trade Center (WTC) responders and informants, 283 pairs, completed five-factor model personality measures and multi-method assessments of stressful events, functioning, mental disorders, 9/11-related treatment costs, BMI, and daily activity across three years. Self-reports were uniquely related to stressful events and functioning. Both self-reports and informant-reports showed incremental validity over one another for mental disorder diagnoses and treatment costs. For objective outcomes daily activity and BMI, informant-reports showed incremental validity over self-reports, accounting for all self-report variance and more. The findings suggest that informant-reports of personality provide better validity for objective health outcomes, which has implications for understanding personality and its role in mental and physical health.
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