PMID- 19604440
OWN - NLM
STAT- MEDLINE
DCOM- 20091022
LR  - 20220410
IS  - 0392-856X (Print)
IS  - 0392-856X (Linking)
VI  - 27
IP  - 3
DP  - 2009 May-Jun
TI  - Evaluation of an existing screening tool for psoriatic arthritis in people with 
      psoriasis and the development of a new instrument: the Psoriasis Epidemiology 
      Screening Tool (PEST) questionnaire.
PG  - 469-74
AB  - OBJECTIVE: To evaluate an existing tool (the Swedish modification of the 
      Psoriasis Assessment Questionnaire) and to develop a new instrument to screen for 
      psoriatic arthritis in people with psoriasis. DESIGN: The starting point was a 
      community-based survey of people with psoriasis using questionnaires developed 
      from the literature. Selected respondents were examined and additional known 
      cases of psoriatic arthritis were included in the analysis. The new instrument 
      was developed using univariate statistics and a logistic regression model, 
      comparing people with and without psoriatic arthritis. The instruments were 
      compared using receiver operating curve (ROC) curve analysis. RESULTS: 168 
      questionnaires were returned (response rate 27%) and 93 people attended for 
      examination (55% of questionnaire respondents). Of these 93, twelve were newly 
      diagnosed with psoriatic arthritis during this study. These 12 were supplemented 
      by 21 people with known psoriatic arthritis. Just 5 questions were found to be 
      significant predictors of psoriatic arthritis in this population. Figures for 
      sensitivity and specificity were 0.92 and 0.78 respectively, an improvement on 
      the Alenius tool (sensitivity and specificity, 0.63 and 0.72 respectively). 
      CONCLUSIONS: A new screening tool for identifying people with psoriatic arthritis 
      has been developed. Five simple questions demonstrated good sensitivity and 
      specificity in this population but further validation is required.
FAU - Ibrahim, G H
AU  - Ibrahim GH
AD  - St. Luke's Hospital, Bradford Teaching NHS Foundation Trust, Bradford, West 
      Yorkshire, UK.
FAU - Buch, M H
AU  - Buch MH
FAU - Lawson, C
AU  - Lawson C
FAU - Waxman, R
AU  - Waxman R
FAU - Helliwell, P S
AU  - Helliwell PS
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PL  - Italy
TA  - Clin Exp Rheumatol
JT  - Clinical and experimental rheumatology
JID - 8308521
SB  - IM
MH  - Adult
MH  - Arthritis, Psoriatic/*diagnosis/epidemiology
MH  - Female
MH  - Humans
MH  - Logistic Models
MH  - Male
MH  - Mass Screening/*methods
MH  - Middle Aged
MH  - Prevalence
MH  - Psoriasis/*diagnosis/epidemiology
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - *Surveys and Questionnaires
MH  - United Kingdom/epidemiology
EDAT- 2009/07/17 09:00
MHDA- 2009/10/23 06:00
CRDT- 2009/07/17 09:00
PHST- 2009/07/17 09:00 [entrez]
PHST- 2009/07/17 09:00 [pubmed]
PHST- 2009/10/23 06:00 [medline]
AID - 2628 [pii]
PST - ppublish
SO  - Clin Exp Rheumatol. 2009 May-Jun;27(3):469-74.