Table 1.

Urine specific gravity and urine osmolality when WUT criteria were used to make a decision regarding hydration state ^a

No. of WUT Markers	M ± SD	Comparisons of WUT Markers			ES	95% CI	P
Urine specific gravity
0	1.014 ± 0.005	0	vs	1	0.24	−0.006 to 0.002	0.515
				2	0.54	−0.009 to −0.001	0.009
				3	1.21	−0.002 to −0.002	0.005
1	1.016 ± 0.009	1	vs	2	0.31	−0.005 to −0.0002	0.026
				3	0.57	−0.010 to −0.001	0.025
2	1.019 ± 0.010	2	vs	3	0.21	−0.008 to 0.002	0.448
3	1.021 ± 0.007
Urine osmolality, mOsmol
0	509 ± 249	0	vs	1	0.35	−240 to −63	0.434
				2	0.78	−346 to −47	0.004
				3	1.01	−477 to −28	0.020
1	597 ± 253	1	vs	2	0.43	−203 to −13	0.018
				3	0.65	−356 to 28	0.125
2	705 ± 253	2	vs	3	0.22	−246 to 134	0.871
3	761 ± 250

ES, effect size; WUT, weight, urine, and thirst.

^aGray-shaded area indicates mean and SD of urine specific gravity and urine osmolality. Gray-shaded area, boldfaced text, indicates diagnosis as likely dehydrated or very likely dehydrated. Unshaded area include comparisons of different number of WUT criteria (eg, 0 vs 1 WUT criterion) in urine specific gravity and urine osmolality with ES, and 95% CIs. Blue-shaded area highlights significant differences (P ≤ 0.05).