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Liquid Drug Dosage Measurement Errors with Different Dosing Devices. An observational study was carried out to determine the magnitude of dosing errors made by parents, the most-preferred drug delivery device and the association of age, gender, education of the caregiver and number of children with the proportion of accurate doses. After enrolment, parents of children aged 6-60 mo were instructed to measure 5 ml of syrup paracetamol using any of the devices (stainless steel spoon, disposable plastic syringe, dosing cup with etched markings) displayed. The quantum of measured dose was confirmed using a calibrated glass cylinder. Error was defined as over 10% variation around the prescribed dose. Of 386 participants, 72 (18.65%) committed error, with 58 (15.02%) and 14 (3.62%) committing mild and moderate errors, respectively. Measuring cup (270, 69.95%) was the commonest device chosen. Use of syringe was associated with greater accurate measurements (P < 0.05) with only 3 (3.57%) committing error compared to 18 (56.25%) and 51 (18.88%) committing error with spoon and cup, respectively. On multivariate analysis, device was the only factor significantly associated with accuracy in measurements.