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Reumatol Clin. 2017 Sep - Oct;13(5):258-263. doi: 10.1016/j.reuma.2016.05.007. Epub 2016 Jun 29.

A comparative study between the implementation of the FRIDEX calibration and the NOGG guideline in the management of osteoporosis in routine clinical practice.

[Article in English, Spanish]

Author information

1
Sección de Endocrinología y Nutrición, Complejo Asistencial Universitario de León, León, España; Departamento de Ciencias Biomédicas, Universidad de León, León, España. Electronic address: giorgos6@yahoo.com.
2
Sección de Endocrinología y Nutrición, Complejo Asistencial Universitario de León, León, España.
3
Centro de Salud Jesús Marín, Molina de Segura, Murcia, España.

Abstract

OBJECTIVE:

The recent FRIDEX calibration proposed cost-effectiveness thresholds for the Spanish population. The aim of our study is to evaluate the impact of its application in routine clinical practice and to compare its thresholds with those of the National Osteoporosis Guideline Group (NOGG).

MATERIAL AND METHODS:

Cross-sectional study in women referred to a bone densitometry unit who were not receiving antiresorptive therapy. The absolute risk of major fracture or hip fracture was calculated with the Spanish and British formulas of the FRAX® tool using the intervention thresholds of the FRIDEX calibration and the NOGG guideline, respectively.

RESULTS:

The study included 607 women with a median age of 59.4 (IQR=14) years. Treatment was initiated in 31.4% after bone mineral densitometry. With the application of the FRIDEX calibration, bone mineral density testing would have been indicated in 35.4% of the sample and treatment in 26.7%, reducing costs by 18.8% over a 5-year period. The NOGG guideline would have recommended testing in 32% and treatment in 21.3% of the participants, resulting in a reduction in costs of 35% over 5years, when compared with the standard approach. Agreement between the FRIDEX calibration and the NOGG guideline, as defined by Cohen's kappa coefficient, was low in terms of both diagnostic (0.16 [95%CI, 0.09-0.24]) and therapeutic indications (0.39 [95%CI, 0.31-0.47]).

CONCLUSIONS:

The application of the FRIDEX calibration and the NOGG guideline improves efficiency in the management of osteoporosis, although the level of agreement between the two is low.

KEYWORDS:

FRAX(®); FRIDEX; NOGG; Osteoporosis

PMID:
27373582
DOI:
10.1016/j.reuma.2016.05.007
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