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Table 3 Survey completion time (minutes) of two formats of the ePedsQL

From: Randomized comparative study of child and caregiver responses to three software functions added to the Japanese version of the electronic Pediatric Quality of Life Inventory (ePedsQL) questionnaire

 Basic formatDynamic formatDifferenceRatio
nMedianRMSTnMedianRMSTMedianRMSTMedianRMST
Children
 Children of survey company users9021.032.779081.173.120.10.41.11.1
 Children from researchers’ neighborhoods1902.605.191893.005.690.40.51.21.1
 0–6-year-old children1681.363.701651.403.890.0 a0.21.0 a1.1
 7–18-year-old children9241.133.109321.323.500.20.41.21.1
 Displays greater than 600 pixels6100.951.766461.062.230.10.51.11.3
 Displays less than 600 pixels4291.423.153941.723.360.30.21.21.1
Caregivers
 Survey company users21700.781.6921500.871.730.10.0 a1.11.0 a
 Researchers’ neighbors5561.683.055492.123.980.40.91.31.3
 0–6-year-old children’s caregivers10381.222.4510251.332.730.10.31.11.1
 7–18-year-old children’s caregivers16880.751.6716740.851.850.10.21.11.1
 Displays greater than 600 pixels14170.731.4214540.771.530.0 a0.11.11.1
 Displays less than 600 pixels12741.112.0812061.352.400.20.31.21.2
  1. “Difference” (median or restricted mean) refers to the time required for the dynamic format minus that for the basic format. For example, children of survey company users required a median of 1.17 min for the dynamic format and 1.03 min for the basic format. Therefore, the difference was calculated as 0.14 and rounded to 0.1. A difference greater than 0 indicates that the dynamic format requires extra time for completion
  2. “Ratio” (median or restricted mean) refers to the time required for the dynamic format divided by that for the basic format. In the example using children of survey company users (median of 1.17 min for the dynamic format and 1.03 min for the basic format), the ratio was calculated as 1.136 and rounded to 1.1. A ratio greater than 1 indicates that the dynamic format requires extra time for completion
  3. RMST Restricted Mean Survival Time
  4. aDifference close to 0 or ratio close to 1 are notable results