2.4 Data analysis
Demographic data of the patients including birth, sex, body weight and diagnosis were collected. Drug information such as dose, frequency, route of administration and indication for use were also retrieved from the electronical medical records of each hospital. Prescriptions with incomplete data, electrolytes, contrast media, total parental nutrition, traditional Chinese medicine, intravenous infusions such as glucose and chloride and transfusion were excluded in this study. Data were collected, combined and analyzed in Excel for Windows using standard descriptive methods for demographics and prescriptions.