Introduction: According to ICD-11, personality disorders (PDs) are defined by the severity of self and interpersonal dysfunction in terms of personality functioning (PF) and an optional assessment of specific maladaptive personality trait expressions. Also, somatoform disorders are replaced by somatic symptom disorder (SSD). This study examines associations using the novel diagnostic criteria of SSD in an unselected primary care sample, PF, and maladaptive traits in patients with and without SSD. Methods: An anonymized cross-sectional study was conducted. A questionnaire including SSD-12 (Somatic Symptom Disorder B Criteria Scale-12) and PHQ-15 (Patient Health Questionnaire-15), LPFS-BF 2.0 (Level of Personality Functioning Scale – Brief Form) and PID-5BF+M (Modified Personality Inventory for DSM-5 – Brief Form Plus) was used. A bifactor (S-1) model was calculated with PF (reference for general factor) and personality traits (specific factors) to estimate associations between PF, specific maladaptive personality traits, and SSD. Differences in personality scales between SSD and non-SSD patients were calculated with the Mann-Whitney U test. Results: A total of 624 patients in six general practices participated (mean age 47 years; 60.4% female). SSD-12 and PHQ-15, respectively, showed significant associations with PF (γ = 0.51; γ = 0.48; p < 0.001), negative affectivity (γ = 0.50; γ = 0.38, p < 0.001) and psychoticism (γ = 0.29; γ = 0.28; p < 0.010). Besides, SSD-12 was significantly associated with disinhibition (γ = −0.38; p < 0.010) and anankastia (γ = −0.16; p < 0.010). Patients with SSD showed significantly impaired PF and maladaptive traits in all scales (p < 0.001). Conclusion: Impaired PF explains moderate to large amounts of the SSD symptoms and maladaptive personality traits negative affectivity, psychoticism, disinhibition, and anankastia show specific associations beyond PF. An in-depth understanding of these relations might be helpful to improve doctor-patient communication and treatment in SSD.

1.
American Psychiatric Association
.
Diagnostic and statistical manual of mental disorders
. 5th ed.
Washington
:
American Psychiatric Publishing
;
2013
.
2.
World Health Organization
.
International classification of diseases eleventh revision (ICD-11)
.
Geneva
:
WHO
;
2022
.
3.
World Health Organization [Internet]
.
Geneva: 6C20 Bodily distress disorder
.
International classification of diseases eleventh revision (ICD-11)
. [cited 2024 Jun 7]. Available from: https://icd.who.int/browse/2024-01/mms/en#767044268
4.
Lehmann
M
,
Pohontsch
NJ
,
Zimmermann
T
,
Scherer
M
,
Löwe
B
.
Estimated frequency of somatic symptom disorder in general practice: cross-sectional survey with general practitioners
.
BMC Psychiatry
.
2022
;
22
(
1
):
632
8
.
5.
Haller
H
,
Cramer
H
,
Lauche
R
,
Dobos
G
.
Somatoform disorders and medically unexplained symptoms in primary care
.
Dtsch Arztebl Int
.
2015
;
112
(
16
):
279
87
.
6.
Fink
P
,
Sørensen
L
,
Engberg
M
,
Holm
M
,
Munk-Jørgensen
P
.
Somatization in primary care: prevalence, health care utilization, and general practitioner recognition
.
Psychosomatics
.
1999
;
40
(
4
):
330
8
.
7.
Hopwood
CJ
,
Kotov
R
,
Krueger
RF
,
Watson
D
,
Widiger
TA
,
Althoff
RR
, et al
.
The time has come for dimensional personality disorder diagnosis
.
Pers Ment Health
.
2018
;
12
(
1
):
82
6
.
8.
Reed
GM
.
Progress in developing a classification of personality disorders for ICD-11
.
World psychiatry
.
2018
;
17
(
2
):
227
9
.
9.
Haslam
N
,
McGrath
MJ
,
Viechtbauer
W
,
Kuppens
P
.
Dimensions over categories: a meta-analysis of taxometric research
.
Psychol Med
.
2020
;
50
(
9
):
1418
32
.
10.
Zimmermann
J
,
Kerber
A
,
Rek
K
,
Hopwood
CJ
,
Krueger
RF
.
A brief but comprehensive review of research on the alternative DSM-5 model for personality disorders
.
Curr Psychiatry Rep
.
2019
;
21
(
9
):
92
.
11.
World Health Organization [Internet]
.
Geneva: 6D10 personality disorder
.
International classification of diseases eleventh revision (ICD-11)
. [cited 2024 Jun 7]. Available from: https://icd.who.int/browse/2024-01/mms/en#941859884
12.
Herpertz
SC
,
Schneider
I
,
Renneberg
B
,
Schneider
A
.
Patients with personality disorders in everyday clinical practice: implications of the ICD-11
.
Dtsch Arztebl Int
.
2022
;
119
(
Forthcoming
):
1
7
.
13.
Sleep
CE
,
Lynam
DR
,
Widiger
TA
,
Crowe
ML
,
Miller
JD
.
An evaluation of DSM–5 Section III personality disorder Criterion A (impairment) in accounting for psychopathology
.
Psychol Assess
.
2019
;
31
(
10
):
1181
91
.
14.
Martí Valls
C
,
Balazadeh
K
,
Kajonius
P
.
Investigating the overlap and predictive validity between Criterion A and B in the alternative model for personality disorders in DSM-5
.
Int J Test
.
2023
;
23
(
3
):
190
204
.
15.
Sleep
CE
,
Weiss
B
,
Lynam
DR
,
Miller
JD
.
The DSM–5 section III personality disorder criterion a in relation to both pathological and general personality traits
.
Personal Disord
.
2020
;
11
(
3
):
202
12
.
16.
Fossati
A
,
Borroni
S
,
Somma
A
,
Markon
KE
,
Krueger
RF
.
Testing relationships between DSM–5 Section III maladaptive traits and measures of self and interpersonal impairment in Italian community dwelling adults
.
Personal Disord
.
2017
;
8
(
3
):
275
80
.
17.
Widiger
TA
,
McCabe
GA
.
The alternative model of personality disorders (AMPD) from the perspective of the five-factor model
.
Psychopathology
.
2020
;
53
(
3–4
):
149
56
.
18.
Asadi
S
,
Bagby
RM
,
Krueger
RF
,
Pollock
BG
,
Quilty
LC
.
Reliability and construct validity of the general factor of personality disorder
.
Personal Disord
.
2022
;
13
(
6
):
662
73
.
19.
Barlow
DH
,
Ellard
KK
,
Sauer-Zavala
S
,
Bullis
JR
,
Carl
JR
.
The origins of neuroticism
.
Perspect Psychol Sci
.
2014
;
9
(
5
):
481
96
.
20.
Widiger
TA
,
Bach
B
,
Chmielewski
M
,
Clark
LA
,
DeYoung
C
,
Hopwood
CJ
, et al
.
Criterion A of the AMPD in HiTOP
.
J Pers Assess
.
2019
;
101
(
4
):
345
55
.
21.
Wright
AGC
,
Hopwood
CJ
,
Skodol
AE
,
Morey
LC
.
Longitudinal validation of general and specific structural features of personality pathology
.
J Abnorm Psychol
.
2016
;
125
(
8
):
1120
34
.
22.
Sharp
C
,
Wright
AGC
,
Fowler
JC
,
Frueh
BC
,
Allen
JG
,
Oldham
J
, et al
.
The structure of personality pathology: both general (‘g’) and specific (‘s’) factors
.
J Abnorm Psychol
.
2015
;
124
(
2
):
387
98
.
23.
Kotov
R
,
Krueger
RF
,
Watson
D
,
Achenbach
TM
,
Althoff
RR
,
Bagby
RM
, et al
.
The Hierarchical Taxonomy of Psychopathology (HiTOP): a dimensional alternative to traditional nosologies
.
J Abnorm Psychol
.
2017
;
126
(
4
):
454
77
.
24.
Kerber
A
,
Zimmermann
J
,
Remmers
C
,
Nolte
T
,
Wendt
L
, et al
.
Examining the role of personality functioning in a hierarchical taxonomy of psychopathology using two years of ambulatory assessed data
. [Preprint] (Version 1). Available from: https://doiorg/1021203/rs3rs-3854842/v1 (accessed February 09, 2024).
25.
Watson
D
,
Levin-Aspenson
HF
,
Waszczuk
MA
,
Conway
CC
,
Dalgleish
T
,
Dretsch
MN
, et al
.
Validity and utility of hierarchical taxonomy of psychopathology (HiTOP): III. Emotional dysfunction superspectrum
.
World Psychiatr
.
2022
;
21
(
1
):
26
54
.
26.
Macina
C
,
Bendel
R
,
Walter
M
,
Wrege
JS
.
Somatization and somatic symptom disorder and its overlap with dimensionally measured personality pathology: a systematic review
.
J Psychosom Res
.
2021
;
151
:
110646
.
27.
Conrad
R
,
Schilling
G
,
Bausch
C
,
Nadstawek
J
,
Wartenberg
HC
,
Wegener
I
, et al
.
Temperament and character personality profiles and personality disorders in chronic pain patients
.
Pain
.
2007
;
133
(
1–3
):
197
209
.
28.
Hyphantis
T
,
Goulia
P
,
Carvalho
AF
.
Personality traits, defense mechanisms and hostility features associated with somatic symptom severity in both health and disease
.
J Psychosom Res
.
2013
;
75
(
4
):
362
9
.
29.
Erkic
M
,
Bailer
J
,
Fenske
SC
,
Schmidt
SN
,
Trojan
J
,
Schröder
A
, et al
.
Impaired emotion processing and a reduction in trust in patients with somatic symptom disorder
.
Clin Psychol Psychother
.
2018
;
25
(
1
):
163
72
.
30.
Van den Bergh
O
,
Witthöft
M
,
Petersen
S
,
Brown
RJ
.
Symptoms and the body: taking the inferential leap
.
Neurosci Biobehav Rev
.
2017
;
74
(
Pt A
):
185
203
.
31.
Van den Bergh
O
,
Brosschot
J
,
Critchley
H
,
Thayer
JF
,
Ottaviani
C
.
Better safe than sorry: a common signature of general vulnerability for psychopathology
.
Perspect Psychol Sci
.
2021
;
16
(
2
):
225
46
.
32.
Petzke
TM
,
Weber
K
,
Van den Bergh
O
,
Witthöft
M
.
Illustrating the pathway from affect to somatic symptom: the Affective Picture Paradigm
.
Cogn Emot
.
2024
:
1
17
.
33.
Bogaerts
K
,
Janssens
T
,
De Peuter
S
,
Van Diest
I
,
Van den Bergh
O
.
Negative affective pictures can elicit physical symptoms in high habitual symptom reporters
.
Psychol Health
.
2010
;
25
(
6
):
685
98
.
34.
McEwen
BS
,
Wingfield
JC
.
The concept of allostasis in biology and biomedicine
.
Horm Behav
.
2003
;
43
(
1
):
2
15
.
35.
Fava
GA
,
McEwen
BS
,
Guidi
J
,
Gostoli
S
,
Offidani
E
,
Sonino
N
.
Clinical characterization of allostatic overload
.
Psychoneuroendocrinology
.
2019
;
108
:
94
101
.
36.
McEwen
BS
,
Wingfield
JC
.
What is in a name? Integrating homeostasis, allostasis and stress
.
Horm Behav
.
2010
;
57
(
2
):
105
11
.
37.
Guidi
J
,
Lucente
M
,
Sonino
N
,
Fava
GA
.
Allostatic load and its impact on health: a systematic review
.
Psychother Psychosom
.
2021
;
90
(
1
):
11
27
.
38.
Danese
A
,
McEwen
BS
.
Adverse childhood experiences, allostasis, allostatic load, and age-related disease
.
Physiol Behav
.
2012
;
106
(
1
):
29
39
.
39.
Toussaint
A
,
Lowe
B
,
Brahler
E
,
Jordan
P
.
The somatic symptom disorder: B criteria scale (SSD-12) – factorial structure, validity and population-based norms
.
J Psychosom Res
.
2017
;
97
:
9
17
.
40.
Toussaint
A
,
Husing
P
,
Kohlmann
S
,
Lowe
B
.
Detecting DSM-5 somatic symptom disorder: criterion validity of the patient health questionnaire-15 (PHQ-15) and the somatic symptom scale-8 (SSS-8) in combination with the somatic symptom disorder – B criteria scale (SSD-12)
.
Psychol Med
.
2020
;
50
(
2
):
324
33
.
41.
Spitzer
C
,
Müller
S
,
Kerber
A
,
Hutsebaut
J
,
Brähler
E
,
Zimmermann
J
.
[The German version of the level of personality functioning scale-brief form 2.0 (LPFS-BF): latent structure, convergent validity and norm values in the general population]
.
Psychother Psychosom Med Psychol
.
2021
;
71
(
07
):
284
93
.
42.
Bach
B
,
Simonsen
S
.
How does level of personality functioning inform clinical management and treatment? Implications for ICD-11 classification of personality disorder severity
.
Curr Opin Psychiatry
.
2021
;
34
(
1
):
54
63
.
43.
Kerber
A
,
Schultze
M
,
Muller
S
,
Ruhling
RM
,
Wright
AGC
,
Spitzer
C
, et al
.
Development of a short and ICD-11 compatible measure for DSM-5 maladaptive personality traits using Ant colony optimization algorithms
.
Assessment
.
2020
:
1073191120971848
.
44.
Bach
B
,
Kerber
A
,
Aluja
A
,
Bastiaens
T
,
Keeley
JW
,
Claes
L
, et al
.
International assessment of DSM-5 and ICD-11 personality disorder traits: toward a common nosology in DSM-5.1
.
Psychopathology
.
2020
;
53
(
3–4
):
179
88
.
45.
Zimmermann
J
,
Müller
S
,
Bach
B
,
Hutsebaut
J
,
Hummelen
B
,
Fischer
F
.
A common metric for self-reported severity of personality disorder
.
Psychopathology
.
2020
;
53
(
3–4
):
168
78
.
46.
Kroenke
K
,
Spitzer
RL
,
Williams
JB
.
The PHQ-9: validity of a brief depression severity measure
.
J Gen Intern Med
.
2001
;
16
(
9
):
606
13
.
47.
Spitzer
RL
,
Kroenke
K
,
Williams
JB
,
Löwe
B
.
A brief measure for assessing generalized anxiety disorder: the GAD-7
.
Arch Intern Med
.
2006
;
166
(
10
):
1092
7
.
48.
IBM Corp
.
IBM SPSS statistics for windows, version 26.0
.
Armonk, NY
:
IBM Corp
;
2019
.
49.
R Core Team. R
.
A language and environment for statisticalcomputing
.
Vienna, Austria
:
R Foundation for Statistical Computing
;
2021
.
50.
Eid
M
.
Multi-faceted constructs in abnormal psychology: implications of the bifactor S-1 model for individual clinical assessment
.
J Abnorm Child Psychol
.
2020
;
48
(
7
):
895
900
.
51.
Heinrich
M
,
Zagorscak
P
,
Eid
M
,
Knaevelsrud
C
.
Giving G a meaning: an application of the bifactor-(S-1) approach to realize a more symptom-oriented modeling of the Beck depression inventory–II
.
Assessment
.
2020
;
27
(
7
):
1429
47
.
52.
Rosseel
Y
.
Lavaan: an R package for structural equation modeling
.
J Stat Softw
.
2012
;
48
(
2
):
1
36
.
53.
Watts
AL
,
Poore
HE
,
Waldman
ID
.
Riskier tests of the validity of the bifactor model of psychopathology
.
Clin Psychol Sci
.
2019
;
7
(
6
):
1285
303
.
54.
Noyes
R
Jr
,
Langbehn
DR
,
Happel
RL
,
Stout
LR
,
Muller
BA
,
Longley
SL
.
Personality dysfunction among somatizing patients
.
Psychosomatics
.
2001
;
42
(
4
):
320
9
.
55.
Van Dijk
S
,
Hanssen
D
,
Naarding
P
,
Lucassen
P
,
Comijs
H
,
Oude Voshaar
R
.
Big Five personality traits and medically unexplained symptoms in later life
.
Eur Psychiatry
.
2016
;
38
:
23
30
.
56.
Haehner
P
,
Sleep
CE
,
Miller
JD
,
Lynam
DR
,
Hopwood
CJ
.
The longitudinal (Co)development of personality traits and the level of personality functioning after negative life events
.
Clin Psychol Sci
.
2023
:
21677026231197607
.
57.
Garcia-Campayo
J
,
Alda
M
,
Sobradiel
N
,
Olivan
B
,
Pascual
A
.
Personality disorders in somatization disorder patients: a controlled study in Spain
.
J Psychosom Res
.
2007
;
62
(
6
):
675
80
.
58.
Bornstein
RF
,
Gold
SH
.
Comorbidity of personality disorders and somatization disorder: a meta-analytic review
.
J Psychopathol Behav Assess
.
2008
;
30
(
2
):
154
61
.
59.
Kerber
A
,
Gewehr
E
,
Zimmermann
J
,
Sachser
C
,
M Fegert
J
,
Knaevelsrud
C
, et al
.
Adverse childhood experiences and personality functioning interact substantially in predicting depression, anxiety, and somatization
.
Personal Ment Health
.
2023
;
17
(
3
):
246
58
. M
60.
Murray
AM
,
Toussaint
A
,
Althaus
A
,
Löwe
B
.
The challenge of diagnosing non-specific, functional, and somatoform disorders: a systematic review of barriers to diagnosis in primary care
.
J Psychosom Res
.
2016
;
80
:
1
10
.
61.
Sauer-Zavala
S
,
Fournier
JC
,
Jarvi Steele
S
,
Woods
BK
,
Wang
M
,
Farchione
TJ
, et al
.
Does the unified protocol really change neuroticism? Results from a randomized trial
.
Psychol Med
.
2021
;
51
(
14
):
2378
87
.
62.
Sauer-Zavala
S
,
Wilner
JG
,
Barlow
DH
.
Addressing neuroticism in psychological treatment
.
Personal Disord
.
2017
;
8
(
3
):
191
8
.
63.
Sauer-Zavala
S
,
Boswell
JF
,
Gallagher
MW
,
Bentley
KH
,
Ametaj
A
,
Barlow
DH
.
The role of negative affectivity and negative reactivity to emotions in predicting outcomes in the unified protocol for the transdiagnostic treatment of emotional disorders
.
Behav Res Ther
.
2012
;
50
(
9
):
551
7
.
64.
Boettcher
J
,
Schaeuffele
C
,
Renneberg
B
.
Das Unified Protocol zur Behandlung emotionaler Störungen
.
Psychotherapeut
.
2018
;
63
(
3
):
182
7
.
65.
Stucki
C
,
Grawe
K
.
Bedürfnis-und motivorientierte beziehungsgestaltung
.
Psychotherapeut
.
2007
;
52
(
1
):
16
23
.
66.
Sachse
R
.
Personality disorders: a clarification-oriented psychotherapy treatment model
.
Hogrefe Publishing
;
2019
.
67.
Babl
A
,
Berger
T
,
Eubanks
CF
,
Gómez Penedo
JM
,
Caspar
F
,
Sachse
R
, et al
.
Addressing interpersonal patterns in patients with personality disorders partially explains psychotherapy outcome via changes in interaction patterns: a mediation analysis
.
Psychother Res
.
2022
;
32
(
8
):
984
94
.
68.
Huprich
SK
,
Bornstein
RF
,
Schmitt
TA
.
Self-report methodology is insufficient for improving the assessment and classification of Axis II personality disorders
.
J Pers Disord
.
2011
;
25
(
5
):
557
70
.
69.
Vazire
S
,
Carlson
EN
.
What do we know when we know ourselves?
In:
John
OP
,
Robins
RW
, editors.
Handbook of personality: theory and research
. 4th ed.
The Guilford Press
;
2021
. p.
837
52
.
70.
Digman
JM
.
Higher-order factors of the Big five
.
J Pers Soc Psychol
.
1997
;
73
(
6
):
1246
56
.
71.
Hu
L
,
Bentler
PM
.
Cutoff criteria for fit indexes in covariance structure analysis: conventional criteria versus new alternatives
.
Struct Equ Model Multidiscip J
.
1999
;
6
(
1
):
1
55
.
72.
Goretzko
D
,
Siemund
K
,
Sterner
P
.
Evaluating model fit of measurement models in confirmatory factor analysis
.
Educ Psychol Meas
.
2023
:
00131644231163813
.
73.
McNeish
D
,
Wolf
MG
.
Dynamic fit index cutoffs for confirmatory factor analysis models
.
Psychol Methods
.
2023
;
28
(
1
):
61
88
.
74.
Ximénez
C
,
Maydeu-Olivares
A
,
Shi
D
,
Revuelta
J
.
Assessing cutoff values of SEM fit indices: advantages of the unbiased SRMR index and its cutoff criterion based on communality
.
Struct Equ Model Multidiscip J
.
2022
;
29
(
3
):
368
80
.
75.
Specht
J
,
Egloff
B
,
Schmukle
SC
.
Stability and change of personality across the life course: the impact of age and major life events on mean-level and rank-order stability of the Big Five
.
J Pers Soc Psychol
.
2011
;
101
(
4
):
862
82
.
76.
Xiong
J
,
Lipsitz
O
,
Nasri
F
,
Lui
LMW
,
Gill
H
,
Phan
L
, et al
.
Impact of COVID-19 pandemic on mental health in the general population: a systematic review
.
J Affect Disord
.
2020
;
277
:
55
64
.
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