Vertebral fractures among breast cancer survivors in China: a cross-sectional study of prevalence and health services gaps

Table 2 Vertebral Fracture Results for BCS and PK-VF Study Cohorts

Variable	BCS Cohort	PK-VF Cohort
Individuals with VF n/N(%)	22/200 (11%)^§	7/200 (3.5%)
Grade 1^{a, b}	13	5
Grade 2	12^§	2
Grade 3	2	0
VFs per Individual median(range)	1(1–10)	1(1–2)
Total Number of VF N	47^¥	9
Grade 1	19*	7
Grade 2	25^¥	2
Grade 3	3	0

VF vertebral fracture, PK-VF Peking Vertebral Fracture Study, BCS breast cancer survivors
^* < .05
^§ < .01
^¥ < .001
^a Please note that because some individuals have multiple fractures of different grades, the number of individuals with grade 1, grade 2 and grade 3 fractures add up to more than 22
^b Vertebral Fractures were classified using the Genant Semi-Quantitative technique. In this method, vertebrae T4-L4 are graded as normal (Grade 0), mildly deformed (Grade 1, approximately 20–25% reduction in anterior, middle, and/or posterior height and a reduction in area of 10–20%), moderately deformed (Grade 2, approximately 25–40 reduction in any height and a reduction in area 20–40%), and severely deformed (Grade 3, approximately 40% reduction in any height and area)¹³

ISSN: 1471-2407