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Table 1 Demographics and key exposures of participants, aged 2–5 years, from NHANES 1999–2002 by weight status.*

From: Television viewing, computer use, obesity, and adiposity in US preschool children

  Normal weight At risk for overweight or overweight Total
Gender    
   Female 51.8 +/- 2.4 51.8 +/- 3.5 51.8 +/- 2.1
   Male 48.3 +/- 2.4 48.2 +/- 3.5 48.2 +/- 2.1
Race/Ethnicity    
   Non-Hispanic white 63.6 +/-2.8 56.1 +/- 4.2 62.0 +/- 2.7
   Non-Hispanic black 13.9 +/- 2.1 15.1 +/- 2.8 14.2 +/- 2.1
   Mexican-American 12.6 +/- 1.8 14.9 +/- 2.0 13.1 +/- 1.6
   Other 9.9 +/- 1.8 13.9 +/- 2.9 10.8 +/- 1.8
Poverty Income Ratio    
   < 1 26.4 +/- 1.7 25.0 +/- 2.7 26.1 +/- 1.5
   ≥ 1 < 2 24.1 +/- 2.1 33.3 +/- 5.5 26.1 +/- 2.4
   ≥ 2 < 3 15.5 +/- 1.7 15.3 +/- 3.2 15.5 +/- 1.7
   ≥ 3 < 4 13.3 +/- 1.7 6.8 +/- 2.0 11.9 +/- 1.4
   ≥ 4 < 5 8.3 +/- 1.5 5.5 +/- 2.1 7.7 +/- 1.4
   ≥ 5 12.4 +/- 1.8 14.1 +/- 3.7 12.7 +/- 1.8
Television/video use    
   ≤ 2 hours/day 70.7 +/- 2.0 60.8 +/- 3.8 68.6 +/- 2.1
   > 2 hours/day 29.3 +/- 2.0 39.2 +/- 3.8 31.4 +/- 2.1
Computer use    
   0 hours/day 45.6 +/- 2.2 39.9 +/- 3.7 44.3 +/- 2.1
   < 1 hour/day 37.9 +/- 2.0 39.2 +/- 3.8 38.2 +/- 1.9
   1 hour/day 11.2 +/- 0.9 12.0 +/- 2.3 11.4 +/- 0.8
   2 hours/day 3.3 +/- 0.7 6.4 +/- 1.9 4.0 +/- 0.7
   3 hours/day 1.1 +/- 0.4 0.9 +/- 0.4 1.0 +/- 0.3
   4 hours/day 0.3 +/- 0.2 0.7 +/- 0.7 0.4 +/- 0.2
   ≥ 5 hours/day 0.6 +/- 0.3 0.9 +/- 0.7 0.7 +/- 0.3
Media use    
   ≤ 2 hours/day 64.4 +/- 2.0 56.7 +/-3.8 62.7 +/- 2.0
   > 2 hours/day 35.6 +/- 2.0 43.3 +/-3.8 37.3 +/- 2.0
  1. * Estimated percentages +/- standard errors are given. n = 1340 for gender, race/ethnicity, poverty income ratio, and TV/video use; n = 1337 for computer use and media use. Overall, 22.0% +/- 1.5% were overweight or at risk for overweight.
  2. P = 0.026 for the Pearson chi-squared statistic
  3. P = 0.0021 for the Pearson chi-squared statistic