European Psychiatry - Volume 33 - March 2016

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24th European Congress of Psychiatry / European Psychiatry 33S (2016) S116–S348 S245
EW377
Exploring the factorial structure of
the revised Fibromyalgia Impact
Questionnaire (FIQR) in a Portuguese
sample of fibromyalgia patients
A.M. Pinto ∗, C. Costa , A.T. Pereira , M. Marques ,
J.A. Pereira da Silva , A. Macedo
1 Faculty of Psychology and Educational Sciences of the University of
Coimbra, Cognitive and Behavioural Center for Research and
Intervention, Coimbra, Portugal
2 Faculty of Medicine of the University of Coimbra and Coimbra
Hospital and University Centre, Rheumatology University Clinic,
Coimbra, Portugal
3 Faculty of Medicine of the University of Coimbra, Psychological
Medicine Department, Coimbra, Portugal
4 Coimbra Hospital and University Centre, Department of Psychiatry,
Coimbra, Portugal
∗ Corresponding author.
Introduction The Revised-Fibromyalgia Impact Questionnaire
(FIQR), composed by 21 items, is one of the most used tools to
measure the impact of fibromyalgia both in clinical and research
settings. Although it has demonstrated good psychometric proper-
ties (Bennet et al., 2009; Costa et al., 2015), little is known about its
factorial structure.
Objective/Aims To explore FIQR’s factorial structure and examine
its association with several psychological constructs.
Methods Hundred and three women with fibromyalgia (mean
age 47.32 ± 10.63) filled in the Portuguese validated versions of
the FIQR, Perceived Stress Scale, Perseverative Thinking Question-
naire, Beck Depression Inventory-II and Profile of Mood States. A
principal components analysis with varimax rotation was carried
out. The number of factors to extract was based on Cattel’s scree
plot and eigenvalues’ magnitude. The associations between FIQR
dimensions and psychological constructs were examined via Pear-
son correlations and multiple linear regressions.
Results Three factors were extracted [F1/Function = Items 1–9,
= 0.92; F2/Symptoms = Items 12, 16–21, = 0.83; F3/Impact =
Items 10, 11, 13–15, = 0.83] explaining 58.57% of the variance.
FIQR symptoms were the best and, nearly in all analyses, the only
significant predictor.
Conclusions The factorial structure of the Portuguese version of
FIQR partially overlaps with the proposed theoretical domains
(Bennet et al., 2009). Similarly to Luciano et al.’s study (2013), facto-
rial analysis also evidenced the multidimensionality of some items.
Fibromyalgia symptoms seem to play the most deleterious effect,
being associatedwith poor mental health indicators. Future studies
are needed to confirm the factorial structure found, due to sample
size, items subjectivity and study’s exploratory nature.
Disclosure of interest The authors have not supplied their decla-
ration of competing interest.
EW378
Unraveling pathways to depression in
fibromyalgia, the role of perseverative
negative thinking and negative affect
A.M. Pinto ∗, C. Costa , A.T. Pereira , M. Marques ,
J.A. Pereira da Silva , A. Macedo
1 Faculty of Psychology and Educational Sciences of the University of
Coimbra, Cognitive and Behavioural Center for Research and
Intervention, Coimbra, Portugal
2 Faculty of Medicine of the University of Coimbra and Coimbra
Hospital and University Centre, Rheumatology University Clinic,
Coimbra, Portugal
3 Faculty of Medicine of the University of Coimbra, Psychological
Medicine Department, Coimbra, Portugal
4 Coimbra Hospital and University Centre, Department of Psychiatry,
Coimbra, Portugal
∗ Corresponding author.
Introduction Several studies have demonstrated a strong link
between fibromyalgia, negative affect (NA) and depression. How-
ever, it remains unclear why some fibromyalgia patients get
depressed while others do not and, primarily, which mechanisms
account for this difference. We hypothesize that, besides clinical
features, the engagement in dysfunctional strategies like persever-
ative negative thinking (PNT) followed by an amplification of NA
levels may increase the risk of fibromyalgia patients experiencing
depressive symptoms.
Objective/Aims To explore the serial mediator effect of PNT
and NA on the relationship between fibromyalgia symptoms and
depressive symptoms.
Methods Hundred and three women with fibromyalgia (mean
age 47.32± 10.63) completed the Portuguese version of the
Revised-Fibromyalgia Impact Questionnaire, Perseverative Think-
ing Questionnaire, Profile of Mood States and Beck Depression
Inventory-II. The association between the variables was investi-
gated via Pearson correlations and serial multiple mediation.
Results The estimated model was significant [F (3.86) = 57.318,
P < .001] explaining 66.66% of depressive symptoms variance.
The total effect of fibromyalgia symptoms on depressive symp-
toms was of .4998 (SE = 0.0795, P < 0.001; CI > 0.3417 and < 0.6578),
with a significant direct effect of 0.1911 (SE = 0.0653; CI > 0.0614
and < 0.3209). The total indirect effects were of 0.3086 (SE = 0.0619;
CI > 0.2033 < 0.4458). Three significant specific indirect effects were
found.
Conclusion The effect of fibromyalgia symptoms on depressive
symptoms is partially operated through cognitive interfer-
ence/unproductiveness, which in turn influences NA levels. Such
findings highlight the crucial role of these constructs in the relation-
ship between fibromyalgia symptoms and depressive symptoms
and the urge to address them when treating individuals reporting
greater fibromyalgia symptoms.
Disclosure of interest The authors have not supplied their decla-
ration of competing interest.
EW379
A cross-sectional analysis of the
relationships of FAM components and
their effects on quality of life in
Chinese patients with chronic
musculoskeletal pain
W. Wong ∗ Lim hen ong how am
R. Fielding
1 Hong Kong Institute of Education, Dept of Special Education &
Counseling, Hong Kong, China
2 United Christian Hospital, Dept of Anesthesiology & Operating
Services, Hong Kong, China
3 Alice Ho Miu Ling Nethersole Hospital, Dept of Anesthesiology &
Operating Services, Hong Kong, China
4 Queen Mary Hospital, Dept of Anesthesiology & Operating Services,
Hong Kong, China
5 Hong Kong Institute of Education, Dept of Psychological Studies,
Hong Kong, China
6 University of Hong Kong, School of Public Health, Hong Kong, China
∗ Corresponding author.
Introduction A body of evidence has accrued supporting the Fear-
Avoidance Model (FAM) of chronic pain which postulated the
mediating role of pain-related fear in the relationships between
pain catastrophizing and pain anxiety in affecting pain-related out-
comes. Yet, relatively little data points to the extent to which the
FAMbe extended to understand chronic pain in Chinese population
and its impact on quality of life (QoL).