Table 4

Sensitivity, specificity, and predictive values of a modified five item criteria including age, weight, disease activity, immobility, and ever use of corticosteriods for the bone density cut off categories T score ≤−1 SD, T score ≤−2.5 SD (World Health Organisation osteoporosis definition6), and Z score ≤−1 SD tested on all 287 patients with RA (n=287), and on subgroups of patients according to sex (235 women and 52 men) and menopausal status (72 premenopausal and 163 postmenopausal)

T score ≤−1 SDT score ≤−2.5 SDZ score ≤−1 SD
PPV=Positive predictive value; NPV=negative predictive value.
Sensitivity (%):
    All708270
    Women708272
        Premenopausal4210052
        Postmenopausal778080
    Men678364
Specificity (%):
    All564545
    Women564546
        Premenopausal787480
        Postmenopausal352930
    Men604540
PPV (%):
    All762941
    Women742940
        Premenopausal591855
        Postmenopausal773138
    Men883144
NPV (%):
    All479073
    Women519076
        Premenopausal6410078
        Postmenopausal357974
    Men309060