[Comparison fracture risk calculated by FRAX tool].

BACKGROUND: The FRAX tool allows calculate the 10 year probability of fracture risk in men and women. OBJECTIVE: To compare the 10 years fracture risk calculated with the FRAX tool using or not bone densitometry. MATERIAL AND METHODS: A prospective, cross-sectional, open a comparative study was done with 40-80-year-old women, who were evaluated with bone densitometry. To calculate the fracture risk the FRAX tool was used with and without bone densitometry in each patient. Both results were compared with Mann-Whitney U test. RESULTS: The mean age was 54.2 ± 8.7 years. The median of the FRAX calculated risks without using bone densitometry was for major fracture 2.4 (1-12) and hip 0.3 (0-5.2). The calculated risks using bone densitometry was for major fracture 2.3 (1.2-11) and for hip 0.2 (0-3.6), without statistically significant differences among them. The calculated T score with FRAX was -1.0 (-2.7 ± 1.9). CONCLUSIONS: The results obtained with the FRAX tool using or not bone densitometry were similar. These findings will allow using this instrument in a greater number of patients.