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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: South Med J. 2016 Sep;109(9):519–524. doi: 10.14423/SMJ.0000000000000512

Table 3.

Bivariate analysis of continuous variables and association with AVN

Variable AVN No AVN P
Urgent care visits/y/patient 3.2 (1.1–8.1) 1.3 (0.5–3.4) 0.016
Admissions/y/patient 1.3 (0.5–2.1) 0.4 (0.1–1.2) 0.000
Admission d/y/patient 5.1 (2.3–11.9) 1.8 (0.3–5.7) 0.0007
Hemoglobin, g/dL 9.4 (8.0–10.8) 9.1 (8.1–10.5) 0.913
Absolute reticulocyte count (K/mm3) 230.7 (165.6–324.6) 255.1 (150.0–326.4) 0.988
Tricuspid regurgitation peak velocity (m/s) 2.44 (2.26–2.73) 2.32 (2.06–2.62) 0.198

Values reported as median (interquartile range). AVN, avascular necrosis.