Table 3.

Multivariable model (n=117): association between overnight change in leg fluid volume and log(REI+1). Because the relationship between overnight change in leg fluid volume and log(REI+1) was U shaped (Figure 2c), overnight change in leg fluid volume was modeled to include a quadratic term.

Term	estimate	SE	statistic	p value
(Intercept)	−1.87	1.43	−1.31	0.19
Age	0.02	0.01	3.93	0.00015
Mexican American: non-Hispanic white	0.33	0.16	2.10	0.04
Women:men	−0.09	0.18	−0.51	0.61
Nighttime leg fluid *				0.02
25th percentile of nighttime leg fluid (1633.31)	1.33
Median of nighttime leg fluid (1987.02)	1.60
75th percentile of nighttime leg fluid (2354.50)	1.72
Overnight change in leg fluid †				0.02
25th percentile of overnight change in leg fluid (−203.04)	−2.29
Median of overnight change in leg fluid (−116.93)	−2.18
75th percentile of overnight change in leg fluid (−43.05)	−2.01
Overnight increase in total body water	−0.01	0.02	−0.34	0.74

^*Evaluated at various values of nighttime leg fluid.

^†Evaluated at various values of overnight change in leg fluid volume.