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. Author manuscript; available in PMC: 2016 Jan 29.
Published in final edited form as: Hemodial Int. 2015 May 14;20(1):38–49. doi: 10.1111/hdi.12315

Figure 4.

Figure 4

Logistic regression models with SPhos > 5.5 mg/dL and PTH > 600 pg/mL as the outcome variables used to estimate the effects of (a) patient number of PB pills/day and (b) facility median number of PB pills/day. All models adjusted for country and accounted for facility clustering effects using Generalized Estimating Equations. Case-mix adjustment: age, sex, black race, body mass index, vintage, 13 comorbidities, albumin, creatinine, nPCR, facility percent Kt/V < 1.2, and facility percent catheter use. For models with SPhos > 5.5 mg/dL as the outcome, effects were estimated with and without adjustment for PTH. For models with PTH > 600 pg/mL as the outcome, effects were estimated with and without adjustment for SPhos.