Table 3.

Percentage body mass loss, thirst level, and urine color 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
Percentage body mass loss
0	−0.27 ± 0.78	0	vs	1	0.55	−1.04 to 0.20	0.298
				2	0.85	−0.16 to −0.34	0.001
				3	2.81	−3.96 to −2.14	0.001
1	0.14 ± 0.77	1	vs	2	0.53	−0.91 to −0.15	0.002
				3	2.99	−3.41 to 1.85	0.001
2	0.68 ± 1.17	2	vs	3	1.74	−2.87 to 1.33	0.001
3	2.78 ± 1.50
Thirst level
0	3.8 ± 0.5	0	vs	1	1.3	−2.5 to −1.0	0.001
				2	1.8	−2.7 to −1.2	0.001
				3	2.83	−2.7 to −0.5	0.002
1	5.5 ± 1.5	1	vs	2	0.17	−0.7 to 0.2	0.592
				3	0.12	−0.8 to 1.1	0.971
2	5.8 ± 1.2	2	vs	3	0.34	−0.5 to 1.3	0.710
3	5.4 ± 0.7
Urine color
0	3 ± 1	0	vs	1	0.53	−2.5 to −1.0	0.170
				2	1.28	−2.7 to −1.2	0.001
				3	3.20	−2.7 to −0.5	0.002
1	4 ± 2	1	vs	2	0.84	−0.7 to 0.2	0.001
				3	1.76	−0.8 to 1.1	0.001
2	5 ± 2	2	vs	3	0.66	−0.5 to 1.3	0.080
3	7 ± 1

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

^aGray-shaded area indicates mean and SD of percentage body mass loss, thirst level, and urine color when 0, 1, 2, or 3 WUT criteria were used to make a decision regarding hydration state (gray-shaded area, boldfaced text, indicates diagnosis as likely or very likely dehydrated). Unshaded area includes comparison of different number of WUT criteria (eg, 0 vs 1 WUT criterion) in percentage body mass loss, thirst level, and urine color with effect size, 95% CIs, and P value demonstrated in white area of the table. Blue-shaded area indicates P ≤ 0.05.