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Table 6 Correlation between intracellular, external fluid and fluid intake

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

  ICF/BW (%) ECF/BW (%) TBW/BW (%) ECF/ICF (%)
r p r p r p r p
Total TFI/BW (mL/kg) 0.324b < 0.001 0.324b 0.001 0.323b < 0.001 −0.041b 0.608
FWI/BW (mL/kg) 0.444a < 0.001 0.470a < 0.001 0.466a < 0.001 0.119a 0.139
TWI/BW (mL/kg) 0.402b < 0.001 0.427b < 0.001 0.410b < 0.001 0.029b 0.720
Males TFI/BW (mL/kg) 0.348b 0.002 0.329b 0.003 0.341b 0.002 0.006b 0.959
FWI/BW (mL/kg) 0.567a < 0.001 0.590b < 0.001 0.581a < 0.001 0.200a 0.075
TWI/BW (mL/kg) 0.511b < 0.001 0.509b < 0.001 0.509b < 0.001 0.085b 0.456
Females TFI/BW (mL/kg) 0.407b < 0.001 0.353b 0.002 0.383b 0.001 −0.074b 0.524
FWI/BW (mL/kg) 0.576a < 0.001 0.496b < 0.001 0.577a < 0.001 0.092a 0.428
TWI/BW (mL/kg) 0.486b < 0.001 0.446b < 0.001 0.468b < 0.001 0.000b 0.999
  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. a, means the correlation coefficient r of Pearson. b, means the correlation coefficient r of Spearman