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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: Eur Spine J. 2018 Mar 31;27(6):1432–1439. doi: 10.1007/s00586-018-5570-8

Table 1.

Demographic Data.

ACDF
N=50,926
ACDA
N=1,469
p-value
Age 53.0 (±7.8, 24–65) 50.2 (±8.0, 21–65) <0.0001
Gender
Male 24,759 (48.6%) 693 (47.2%) 0.28
Female 26,167 (51.4%) 776 (52.8%)
Race
Caucasian 41,017 (80.5%) 1,204 (82.0%) 0.13
African American 3,353 (6.6% 74 (5.0%)
Asian 2,217 (4.4%) 59 (4.0%)
Native American 186 (0.4%) 8 (0.6%)
Other 4,153 (8.2%) 124 (8.4%)
Payer
Private 32,088 (63.0%) 824 (56.1%) <0.0001
Medicare 3,760 (7.4%) 87 (5.9%)
MediCal 3,546 (7.0%) 54 (3.7%)
Worker’s Compensation 8,679 (17.0%) 392 (26.7%)
Other 2,853 (5.6%) 112 (7.6%)