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Table 2 Comparison of patients’ subjective evaluations (ratings) of headache diaries

From: An electronic diary on a palm device for headache monitoring: a preliminary experience

Item Paper diary (m ± SD) Palm diary (m ± SD) P*
Easy to understand 8.3 8.7 <0.01
Easy to use 7.9 8.9 <0.01
Handy 8.2 8.9 <0.01
Visual impact of the layout 7.8 8.5 <0.01
Overall preference 7.4 8.3 <0.01
  1. * Student’s paired t test