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. Author manuscript; available in PMC: 2014 Jan 7.
Published in final edited form as: J Am Coll Cardiol. 2012 Dec 19;61(4):10.1016/j.jacc.2012.10.032. doi: 10.1016/j.jacc.2012.10.032

Figure 2. Balance of Continuous and Categorical Variables After Adjustment.

Figure 2

Pre- and post-inverse probability of treatment weighting (IPW) balance of the covariates between radial and femoral patients was checked. IPW improved the balance for all variables. Continuous variables were reasonably balanced even before IPW (all R2 < 0.004). (A) Continuous variables. (B) Categorical variables. GFR = glomerular filtration rate; HF = heart failure; Hgb = hemoglobin; NYHA = New York Heart Association; other abbreviation as in Figure 1.