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Table 1 Number of dose calculation errors observed

From: What is the easier and more reliable dose calculation for ivPhenytoin in children at risk of developing convulsive status epilepticus, 18 mg/kg or 20 mg/kg?

  18 mg/kg dose 20 mg/kg dose Effect of dose Effect of calculator use
  Calculator used No calculator Calculator used No calculator Calculator used No calculator 18 mg/kg dose 20 mg/kg dose
Significant error >10% 2/300 28/300 3/300 1/300 NS * * NS
Speed of calculation in seconds (range) 8 (2–36) 18 (2–77) 6 (1–39) 4 (1–44) ** ** ** NS
  1. Comparison of number of significant errors in drug calculation of > 10%, when asked to calculate 18 mg/kg dose and 20 mg/kg dose with and without the use of the calculator (top row). Speed of calculation (seconds) expressed as median and range for making the calculations when asked to calculate 18 mg/kg dose and 20 mg/kg dose with and without the use of a calculator (bottom row).
  2. * p < 0.001 Fischer exact test.
  3. ** p < 0.001 Wilcoxson sign ranked test.