The low sodium intake is important for ascites control in liver cirrhosis patients. Therefore, World Health Organization (WHO) recommends reduction of sodium (Na) to 2g/day for adults. The 24-hour urine Na excretion has been regarded as a standard method to estimate the amount of daily dietary sodium intake. However, it is too inconvenient to apply to patients or the general population in practice. For this reason, it has been suggested that a spot urine Na/potassium (K) ratio could be replaced with the 24-hour urine Na excretion. However, the evidence is not sufficient for that. The investigators will evaluate the usefulness of spot urine Na/K ratio to estimate the dietary sodium intake. The investigators will also verify several formulas of estimating the 24-hour Na excretion with spot urine Na, K, Creatinine (Cr).
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To evaluate the usefulness of urine Na / K ratio as a clinical indicator to replace the 24-hour urine sodium excretion (mEq/L) in liver cirrhosis patients with ascites.
Timeframe: After 24 hours of urine collection