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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

1 , 2 , 3 ,

, C. Costa

2

, A.T. Pereira

3

, M. Marques

3 , 4

,

J.A. Pereira da Silva

2

, A. Macedo

3 , 4

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.

http://dx.doi.org/10.1016/j.eurpsy.2016.01.495

EW378

Unraveling pathways to depression in

fibromyalgia, the role of perseverative

negative thinking and negative affect

A.M. Pinto

1 , 2 , 3 ,

, C. Costa

2

, A.T. Pereira

3

, M. Marques

3 , 4

,

J.A. Pereira da Silva

2

, A. Macedo

3 , 4

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.

http://dx.doi.org/10.1016/j.eurpsy.2016.01.496

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

1 ,

, H .

Lim

2 , P. C

hen

3 , S. W

ong

4 , Y. C

how

4 , J. L

am

5 ,

R. Fielding

6

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).