European Psychiatry - Volume 33 - March 2016

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24th European Congress of Psychiatry / European Psychiatry 33S (2016) S116–S348 S251
in the systematic review. The keywords used for the literature
searchwere: “borderline personality disorder”, “borderline person-
ality”, “working memory”, “executive functioning”. In each search,
the keywords were used together with the logical operator “and”.
Summary Three studies were included in this systematic review
In each study, the working memory was investigated
using N-back test. In two of those studies significantly differences
were found between patients and healthy group in N-back task. In
the third study, which usedmore tests to investigateworkingmem-
ory domain, no differences were found between the two groups.
Conclusions Borderline personality disorder patients performed
significantlyworse on the N-back test compared to healthy controls
and the impairment increased with increasing working memory
load. In the third study the working memory domain was investi-
gated using four different tests and single scores were not included
therefore it was impossible to compare N-back data.
Table 1
Disclosure of interest The authors have not supplied their decla-
ration of competing interest.
EW392
Self-Concealment Scale: Validation of
two Portuguese versions
M. Costa , A.T. Pereira , M.J. Soares , J. Azevedo ∗, A. Macedo
Faculty of Medicine, University of Coimbra, Psychological Medicine,
Coimbra, Portugal
∗ Corresponding author.
Introduction Self-Concealment Scale (SCS) is composed of ten
items to measure self-concealment, defined as a tendency to
conceal from others personal information that one perceives as
distressing or negative (Larson and Chastain, 1990).
Objective To investigate the psychometric properties of the SCS-
10 Portuguese version and of an adapted version containing two
additional items specifically focused on self-concealment related
do health problems (physical and psychological)–SCS-12.
Methods The Portuguese version of the SCS-12 and other val-
idated questionnaires designed to evaluate self-reported health,
perfectionism and optimism-pessimism were administered to a
convenience sample of 555 adults from the community (60.5%
females; mean age = 43.49 ± 10.565).
Results The SCS-10 and SCS-12 Cronbach’s alphas were ˛ < 0.80.
In both versions, all the items contribute to the internal consistency.
The factor analysis, following the Kaiser and the Cattel’s Scree Plot
criteria, revealed that SCS-10 is unidimensional and that SCS-12
reliably and validly evaluates two dimensions: F1 Keeping secrets
(Explained variance = 48.60%; ˛ = 0.816), F2 Personal concealment
including health problems (9.65%; ˛ = 0.797). The pattern of cor-
relations of the SCS dimensional and total scores was as follow:
negative low correlations with physical health (@−0.20), negative
moderate correlations with psychological health (@–.30), moder-
ate correlations with self-oriented perfectionism, social-prescribed
perfectionism, pessimism (@0.25) and optimism (@−0.20).
Conclusions The Portuguese versions of SCS have good reliabil-
ity and validity (construct and convergent-divergent). The factorial
structure partially overlaps with the original. SCS could be use-
ful for research proposes, namely in an ongoing project on the
role of the mentioned personality traits on illness and health
behavior.
Disclosure of interest The authors have not supplied their decla-
ration of competing interest.
EW393
Perseverative negative thinking
prospectively mediates the
relationship between perfectionism
and psychological distress
P. Casimiro , A.M. Pinto , A.T. Pereira ∗, V. Quaresma ,
M.J. Soares , A.P. Amaral , B. Maia , M. Marques , V. Nogueira ,
C. Roque , N. Madeira , M. Bajouco , S. Morais , A. Macedo
1 University of Coimbra, Faculty of Medicine, Coimbra, Portugal
2 Faculty of Medicine, University of Coimbra, Psychological Medicine,
Coimbra, Portugal
3 Faculty of Psychology and Educational Sciences, University of
Coimbra, CINEICC, Coimbra, Portugal
4 Institute Polytechnic of Coimbra, Coimbra Health School, ESTESC,
Coimbra, Portugal
5 The Catholic University of Portugal, Braga Regional Centre, Faculty
of Philosophy and Social Sciences, Coimbra, Portugal
∗ Corresponding author.
Introduction We have recently found that Perfectionism and Per-
severative Negative are both correlates of psychological distress/PD
and that PNT mediates the relationship between perfectionism and
PD (Macedo et al., 2015).
Objectives To investigate if perfectionism and PNT are prospec-
tively associated to PD and if PNT is a longitudinal mediator
between perfectionism and PD, controlling for perceived stress and
gender.
Methods A total of 227 university students (80.1% girls) filled
in the Portuguese validated versions of Perseverative Thinking
Questionnaire (PTQ), Multidimensional Perfectionism Cognitions
Inventory (MPCI), Profile of Mood States and Perceived Stress
Scale, with an additional item to evaluate perceived social sup-
port/PSS at T0 and after approximately one year (T1) (Mean
months = 12.77 ±1.137). Only variables significantly correlated
with the outcomes (Tension/Anxiety at T1 and Depression at T1)
were entered in the conditional process analysis. The moderat-
ing role of perceived support on the link between Concern over
Mistakes (MPCI) and psychological distress and between PTQ total
score and psychological distress (anxiety and depression sepa-
rately) was examined via conditional process analyses.
Results The estimated models were significant (F = 4.257,
P = .002;F = 6.476, P < .001) explaining 15.9% of tension-anxiety and
25.5% of depression variance. A significant conditional indirect
effect of PTQ total score on psychological distress at average and
higher levels of perceived support was found, in both models (anx-
iety and depression). On the contrary, the two models showed a