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Advisor(s)
Abstract(s)
Background
In Switzerland, nurses are allowed to prescribe and administer morphine in emergency
situations without a doctor. Still, nurses and other health professionals are often reluctant to
prescribe and administer morphine for pain management in patients. No valid Frenchspeaking instrument is available in Switzerland to assess the attitudes of nurses and other
health professionals towards the prescription and administration of morphine. In this study,
we evaluated the psychometric properties of the French version of the questionnaire
“Attitudes towards morphine use”.
Methods
The instrument was derived from an Italian version. Forward and back translations of the
questionnaire were performed. Item analysis and construct validity were assessed between
April and December 2010 in a cross sectional study including five Swiss hospitals in a
sample of 588 health professionals (533 nurses, mean age 38.3 ± 10.2 years). Thirty subjects
participated in test-retest reliability.
Results
The time to complete the instrument ranged between 12 and 15 minutes and neither floor nor
ceiling effect were found. The initial 24-item instrument showed an intraclass correlation
(ICC) of 0.69 (95% CI: 0.64 to 0.73, P < 0.001), and a Cronbach’s α of 0.700. Factor analysis
led to a six-component solution explaining 52.4% of the total variance. After excluding five
items, the shortened version showed an ICC of 0.74 (95% CI, 0.70 to 0.77, P < 0.001) and a
Cronbach’s α of 0.741. Factor analysis led to a five-component solution explaining 54.3% of
the total variance. The five components were named “risk of addiction/dependence”;
“operational reasons for not using morphine”; “risk of escalation”; “other (non-dependence)
risks” and “external (non-operational) reasons”. In test-retest, the shortened instrument
showed an ICC of 0.797 (95% CI, 0.630 to 0.911, P < 0.001) and a Cronbach’s α of 0.797.
Conclusions
The 19-item shortened instrument assessing attitudes towards the prescription and
administration of morphine showed adequate content and construct validity.
Description
Keywords
Instrument validation Morphine use Attitudes Psychometrics Switzerland
Pedagogical Context
Citation
FERREIRA, Maria; VERLOO, Henk; MABIRE, C.; VIEIRA, Margarida; MARQUES-VIDAL, Pedro - Psychometric evaluation of the French version of the questionnaire attitudes towards morphine use; a cross-sectional study in Valais, Switzerland. BMC Nursing. ISSN: 1472-6955. 13(1), 1-16.
Publisher
BMC