2015, Number 1
Validity and reliability of synthetics indicators for tuberculosis surveillance and control
Language: Spanish
References: 19
Page: 28-40
PDF size: 167.38 Kb.
ABSTRACT
Objectives: To appreciate the validity, reliability, accessibility and feasibility of two composite indicators reflecting intensity and quality of tuberculosis case detection.Methods: Is it a descriptive-qualitative study. The Indicators validation was carried out in different moments between March of 2009 and December of 2011, by expert’s evaluations. Ordinal numerical scales for the evaluative categories of the indicators intermediate variables were elaborated, calculating their arithmetical means and the position index (PI). For the cases finding indicator (Isiloc), were evaluate the aspect validity, context, predictive capacity, consistency, coherence, construct, accessibility and feasibility (minimum = 1 and maximum = 5). The variables for cases detection indicator (Isidec) were rated in terms of validity, reliability, comparability, specificity, sensibility, operability, affordability and feasibility (1= none to 5 = very). Both indicators were valued to the grade of valid, reproducible and feasible (3 = yes, 2 = partly and 1 = 0). Furthermore, we applied a semi-structured questionnaire to explore opinions of the users about their usefulness, feasibility and limitations.
Results: Isiloc obtained highest rating (5, PI = 1) for five evaluated approaches and 4,7 and 4,8 (PI 0,93 and 0,95) for other two approaches. For Isidec most of the approaches obtained averages between 4 and 5 (P ≥ 0,90, and the intermediate variables obtained mostly averages between 4,2 and 4,9 (IP 0,80 to 0,95). Both indicators in a third approaches obtained the highest rating (5, PI = 1) and were generally considered useful and feasible, although its application was limited by the lack of skills and resources of the users.
Conclusion: validation of these indicators has been satisfactory and should continue to apply its field test.
REFERENCES
Gómez P, Méndez J, Armas L, Gonzalez E. Evaluación de la detección de casos de tuberculosis mediante un indicador sintético (Isiloc). Provincia de Matanzas. Rev Médica Electrónica. 2009 [citado 15 May 2011];31(4):[aprox 9 p.]. Disponible en : http://www.revmatanzas.sld.cu/revista%20medica/año%202009/en205.htm
Jordán T, Oramas R, Díaz O, González E, Armas L. Evaluación de la detección de casos de tuberculosis mediante un indicador sintético en dos municipios de Ciudad de la Habana. Rev Cubana Hig Epidemiol. 2008 [citado 7 Mar 2012];46(3):1-9. Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve=223217511004