Fig. 1From: Validity of mobile electronic data capture in clinical studies: a pilot study in a pediatric populationDaily data collection schedule. tM: Timepoint directly after awakening of child, t1: 1 h (+/− 15 min) after administration of first routinely scheduled dose of acetaminophen; t2: 4 h (+2 h) after administration of first routinely scheduled dose of acetaminophen. * “Medication given” indicates the timepoint at which children had either received routine acetaminophen, or not (yes/no). Independent of whether medication was given or not, the app used the recorded time stamp to automatically calculate t1 and t2Back to article page