Desarrollo y validación de un cuestionario específico de evaluación de la satisfacción del paciente diabético con glucómetros

Abstract

Objective

The aim of the study was to develop a specific questionnaire to assess patient satisfaction with the use of glucometers, and to evaluate their psychometric properties (feasibility, reliability and validity).

Material and methods

(i) An initial 53 item bank was constructed from a systematic review of literature. A panel composed of 6 experts and 50 patients concluded a 25 item version of the questionnaire (dimensions: Satisfaction, inconveniences, added value and appearance). (ii) In order to evaluate the psychometric properties, an epidemiological multi-centred, cross-sectional and 2 month long study was designed, for which 283 patients 18 years or older who were suffering from DM (type 1 and 2) and using a portable glucometer were recruited. Responses to the questionnaire that was the purpose of the study were gathered, together with complementary variables in a single visit. To evaluate test-retest reliability, 51 patients responded again 15 days after initial visit.

Results

There was high internal consistency (Cronbach alpha = .88). Moreover, it showed a positive and statistically significant correlation with patient overall satisfaction (SAT-Q), and with patient treatment-satisfaction (DTSQs^©) questionnaires. Statistically significant differences were found in SATIGLU total score depending on the type of DM, in favour of type 1 DM patients (z = 6.69; P = .000), and glycated haemoglobin favouring patients who observe a good control of their disease, HbA1c < 7 (z = –3.13; P = .002).

Conclusion

The SATIGLU Questionnaire showed adequate psychometric properties as an evaluation tool of patient satisfaction with the use of glucometers.