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Table 1 Differences between the two groups with regard to the confounding factors

From: The effects of pediatric primary prevention programs on screen-time and reading habits of children in Jordan

Factor Group Number Mean Standard deviation 95% CI of differencea t-value
(df)b
p-value
Age of parent Test 30 36.73 8.00 [− 5.20, 3.67] − 0.35 (56) 0.730
Control 28 37.50 8.85
Number of children Test 30 4.00 1.82 [− 0.96, 0.89] − 0.07 (58) 0.943
Control 30 4.03 1.75
Age of childrenc Test 115 11.67 6.31 [− 1.12, 2.13] 0.61 (234) 0.541
Control 121 11.17 6.34
  1. aDifference was calculated as Test–Control. CI, confidence interval
  2. bdf, degrees of freedom
  3. cAll the children in all the families in each group were considered in these calculations