Frequency of bone mineral density testing in adult kidney transplant recipients from Ontario, Canada: a population-based cohort study

Table 1 Baseline characteristics of kidney transplant recipients classified by presence of at least one bone mineral density test in the 3 years after transplantation^a

	Bone mineral density test
Characteristic	Yes	No	P value
Characteristic	(n = 2786)	(n = 2035)	P value
Age, years	50 (39–59)	49 (38-59)	0.04
Women	1182 (42 .4 %)	599 (29.4 %)	<0.001
Transplant era			<0.001
1994–1997	290 (10.4 %)	624 (30.7 %)
1998–2001	631 (22.6 %)	480 (23.6 %)
2002–2005	769 (27.6 %)	413 (20.3 %)
2006–2009	1096 (39.3 %)	518 (25.5 %)
Diabetes	690 (24.8 %)	565 (27.8 %)	0.02
Previous non-vertebral fracture	68 (2.4 %)	41 (2.0 %)	0.33
Charlson comorbidity index^b	2.6 ± 1.0	2.7 ± 1.2	0.002

Data are median (interquartile range), mean (± SD) or numbers (percent)
Abbreviation: SD standard deviation
^aAge and transplant era were assessed at the time of transplant (index date). Diabetes and Charlson comorbidity index were assessed in the 3 years prior to the transplant date. Prior non-vertebral fracture was defined as a composite of proximal humerus, forearm, hip fractures from 1991 to transplant date (index date)
^bAll recipients with a Charlson comorbidity index (CCI) of 0 were given a score of 2 and those with a score of 1 were given a score of 3; one of the variables in the CCI is presence of end-stage renal disease which automatically results in recipients receiving a score of 2

ISSN: 2054-3581