Table 2: DXA versus QCT measurements for total number of vertebrae and patients.
(a)

NormalOsteopenicOsteoporotic

Vertebrae ()DXA59 (53.1%) 32 (28.8%)20 (18%)
QCT26 (23.4%)48 (43.2%) 37 (33.3%)

value0.00040.090.03

Patients ()DXA16 (43.2%)12 (32.4%)9 (16.2%)
QCT8 (21.6%)13 (35.1%)16 (43.2%)

value0.150.690.04

(b)

VertebraeNormalOsteopenicOsteoporotic

Stage GOLD
I + II ()
DXA28 (54.9%)18 (35.3%)5 (9.8%)
QCT16 (31.3%)22 (43.1%)13 (25.4%)

p value0.090.60.09

Stage GOLD
III + IV ()
DXA31 (51.6%)14 (23.3%)15 (25%)
QCT10 (16.6%)26 (43.3%)24 (40%)

p value0.0010.080.2

Dual X-ray absorptiometry.
Quantitative computed tomography.