Table 3

Sensitivity, specificity, and predictive values of the proposed criteria by Lems and Dijkmans8 for the bone density cut off categories T score ≤−1.0, T score ≤−2.5 (World Health Organisation osteoporosis definition6), and Z score ≤−1.0 tested on all 287 patients with RA and on subgroups of patients according to sex (235 women and 52 men) and menopausal status (72 premenopausal and 163 postmenopausal)

T score ≤−1T score ≤−2.5Z score ≤−1
PPV=Positive predictive value; NPV=negative predictive value.
Sensitivity (%):
Specificity (%):
PPV (%):
NPV (%):