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. Author manuscript; available in PMC: 2014 Sep 9.
Published in final edited form as: JAMA Intern Med. 2013 Sep 9;173(16):1514–1521. doi: 10.1001/jamainternmed.2013.8725

Table 4.

Mortality, Major Medical Complications, and Resource Utilization in Propensity Score Matched Groups

No. (%)
Control
(n = 9017)
Augmented
(n = 9017)
HR or OR
(95% CI)
P
Value
Death
  30 days 51 (0.6) 31 (0.3) 0.61 (0.39–0.95) .03
  1 year 505 (5.6) 469 (5.2) 0.92 (0.81–1.04) .18
Major medical complications
  30 days 947 (10.5) 860 (9.5) 0.90 (0.81–0.99) .03
  1 year 2709 (30.0) 2691 (29.8) 1.00 (0.94–1.06) .96
Healthcare utilization (1 year)
  Hospitalizationa 5023 (55.7) 5585 (61.9) 1.31 (1.23–1.39) <.001
  ICU admission 1187 (13.2) 1300 (14.4) 1.11 (1.02–1.21) .02
  SNF discharge 1901 (21.1) 2051 (22.8) 1.10 (1.03–1.19) .006
  Wrist fracture 191 (2.1) 169 (1.9) 0.88 (0.72–1.09) .24
  Hip fracture 601 (6.7) 582 (6.5) 0.97 (0.86–1.09) .57

No Procedure (30 days) Control
(n = 2773)
Pre-Procedureb
(n = 2773)

Major medical complications 264 (9.5) 180 (6.5) 0.66 (0.54–0.80) <.001

Abbreviations: CI, confidence interval; HR, hazard ratio; ICU, Intensive care unit; OR, Odds ratio; SNF, skilled nursing facility.

a

Hospitalizations after vertebral fracture diagnosis and excluding hospitalization at the time of spinal augmentation procedure.

b

Pre-procedure subgroup includes patients from the augmented group who had not yet undergone spinal augmentation at 30 days.