Table 1:

Characteristics of patients with osteoporotic vertebral compression fractures (N = 357)

Characteristic
Mean age ± SD (range), years	77.5 ± 9.5 (40–98)
No. (%) female	263 (74)
Total number of VCFs	660
No. (%) primary VCFs*	489 (74)
No. (%) secondary VCFs†	171 (26)
Preprocedure VAS pain intensity—all fractures
N	652
Mean ± SD	7.9 ± 2.2
Median	8.0
Range	0–10
Postprocedure VAS pain intensity—all fractures
N	560
Mean ± SD	1.6 ± 2.8
Median	0
Range	0–10
Pain improvement—all fractures
N	560
Mean ± SD	−6.2 ± 3.5
Median	−7.0
Range	−10.0–6.0

Note:—VAS indicates visual analog scale.

^*Primary vertebral compression fractures (VCFs) are first-time fractures for which vertebroplasty was performed.

^†Secondary VCFs are subsequent new fractures that are adjacent or nonadjacent to the primary fractures.