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Table 4 Change in total score of asthenopia questionnaire after tablet computer watching was compared

From: The effect of Vaccinium uliginosum extract on tablet computer-induced asthenopia: randomized placebo-controlled study

 

Treatment Group

Mean difference [90 % CI]

p-value*

DA9301

Placebo

n = 26

n = 24

Baseline visit

 Mean (SD)

3.54 (6.60)

1.04 (5.30)

  

 Median (Min, Max)

2.50 (−10.00,24.00)

0.00 (−9.00,17.00)

  

Final visit

 Mean (SD)

0.46 (4.50)

2.42 (6.81)

  

 Median(Min, Max)

1.00 (−12.00,10.00)

0.50 (−8.00,23.00)

  

   p-value**

0.039

0.861

  

 Mean Change

−3.08

1.38

−4.45 [−8.00,−0.90]

0.020

  1. *:p-value obtained from Student,s t-test. If p-value < 0.05, then significant
  2. **:p-value obtained from Paired t-test. If p-value < 0.05, then significant