Skip to main content

Table 4 Potential mediation effect of various home environment variables on the relationship between SES and children’s screen time

From: Home environment relationships with children’s physical activity, sedentary time, and screen time by socioeconomic status

Independent variable Potential mediator Direct effect estimatea Indirect effect estimateb % of total effect that is mediatedc p-valued
Income Media in bedroom -.08 -.02 23% <.001
  Access to portable play equipment -.09 -.01 8% .04
  Household rules about media -.09 -.01 7% .36
  Household rules about safety -.10 .01 −1% .50
  Screen time with parents -.09 -.01 13% .01
Education Media in bedroom -.18 -.08 31% <.001
  Access to portable play equipment -.24 -.01 6% .05
  Household rules about media -.25 .01 -.1% .99
  Household rules about safety -.25 .01 -.6% .73
  Screen time with parents -.23 -.03 10% .03
  1. a Refers to the estimate of the direct effect of income or education on screen time.
  2. b Refers to the estimate of income or education on screen time through the pathway with the potential mediator.
  3. c Refers to the percentage of the total effect of income or education on screen time that is mediated by the potential mediator.
  4. d Is the p-value from the Sobel mediation test which tests the significance of the indirect effect of the potential mediator.