. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: Am J Kidney Dis. 2015 May 12;66(3):499–506. doi: 10.1053/j.ajkd.2015.03.028

Table 6.

Association of pre-dialysis calculated osmolarity with intra-dialytic SBP decline, according to tertiles of ultrafiltration rate

	UFR Tertile 1	UFR Tertile 2	UFR Tertile 3
Intradialytic SBP decline per 10-mOsm/L greater calculated Osmolarity (mm Hg)	2.4 (1.5 to 3.3)	1.7 (0.8 to 2.6)	0.3 (−0.6 to 1.2)
P	<0.001	<0.001	0.5
Mean calculated osmolarity (mOsm/L)	305.6±9.6	307.0±9.3	306.5±9.6

Note: Values in parentheses are 95% confidence intervals. Generalized linear models were fit to estimate the association of pre-dialysis calculated osmolarity with intra-dialytic SBP decline. Model 2 adjusted for age, sex, race (black versus non-black), diabetes, ischemic heart disease, congestive heart failure, access type (fistula, graft, catheter), pre-dialysis SBP, UFR, serum calcium, albumin, and bicarbonate.

UFR, ultrafiltration rate