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Table 3 The intracellular, extracellular fluid and fluid intake of the participants

From: Association between the content of intracellular and extracellular fluid and the amount of water intake among Chinese college students

  Males Females Total Statistical value (t/Z) p
ICF
 Content (kg) 24.5 [22.8,26.4] 17.3 [16.1,18.5] 20.5 [17.3,24.5] -10.611a < 0.001
 ICF/BW(%) 36.9 ± 3.6 31.8 ± 2.3 34.4 ± 4.0 10.342b < 0.001
ECF
 Content (kg) 14.7 [13.5,15.6] 10.6 [9.9,11.4] 12.4 [10.7,14.7] -10.408a < 0.001
 ECF/BW (%) 22.0 ± 2.2 19.5 ± 1.5 20.8 ± 2.3 7.977b < 0.001
TBW
 Content (kg) 39.1 [36.2,42.2] 28.0 [26.0,29.9] 32.8 [28.0,39.2] −10.570a < 0.001
 TBW/BW (%) 58.8 ± 5.8 51.3 ± 3.8 55.2 ± 6.2 9.750b < 0.001
ECF/ICF (%) 60.4 ± 1.7 60.6 ± 1.7 60.5 ± 1.7 −0.746b 0.475
TFI (mL) 1214 [977,1545] 958 [696,1383] 1135 [858,1478] −3.131a 0.002
TFI/TWI (%) 49.3 ± 8.6 48.8 ± 10.4 49.1 ± 9.5 0.301b 0.764
FWI (mL) 1286 ± 263 1054 ± 213 1173 ± 263 6.054b < 0.001
FWI/TWI (%) 50.7 ± 8.6 51.2 ± 10.4 50.9 ± 9.5 −0.301b 0.764
TWI (mL) 2583 ± 602 2154 ± 625 2373 ± 648 4.392b < 0.001
  1. Note: ICF Intracellular fluid, ECF Extracellular fluid, TBW Total body water, TFI Daily total fluid intake, FWI Daily water intake from food, TWI Daily total water intake. Mean and standard deviation (SD) was used to describe variables in normal distribution; percentile (P50 [P25, P75]) was used to describe variables in skewness distribution. a, means the statistical value Z of Kruskal-Wallis test for comparison of indexes between sexes. b, means the statistical value t of Student’s t-test for comparison of indexes between sexes