TABLE 1.

Median Weekly Free-Time Physical Activity Sessions Among Children 9 to 13 Years of Age, National Population, 2003

No. of Sessions (95% Confidence Interval)
(A) No Recall of Campaign(B) Recall of Campaign Without Understanding(C) Aided Recall of Campaign With Understanding(D) Unaided Recall of Campaign With Understanding(E) γ(F) Actual Population(F − A) Overall Campaign Effect
Total3.58 (2.90 to 4.21)3.13 (2.24 to 3.95)4.45 (4.16 to 4.74)4.70 (3.68 to 5.86).09* (.03 to .14)4.13 (3.90 to 4.35)0.54 (−0.16 to 1.24)
Gender
    Male4.37 (3.67 to 4.99)4.05 (2.47 to 4.96)4.94 (4.60 to 5.41)5.98 (4.12 to 7.23).08 (−.01 to .16)4.75 (4.46 to 5.08)0.39 (−0.12 to 0.90)
    Female2.60 (1.92 to 3.64)2.64 (0.59 to 3.62)3.79 (3.21 to 4.37)3.38 (2.43 to 4.82).09* (.01 to .17)3.29 (2.94 to 3.69)0.70* (0.06 to 1.33)
Age
    9–10 y3.18 (2.36 to 4.13)2.36 (0.71 to 4.12)4.79 (4.28 to 5.41)5.63 (4.02 to 6.89).16* (.08 to .23)4.28 (3.85 to 4.72)1.10* (0.29 to 1.91)
    11–13 y4.02 (2.94 to 4.53)3.46 (2.46 to 4.55)4.21 (3.77 to 4.61)4.06 (3.00 to 5.45).03 (−.04 to .10)4.04 (3.69 to 4.33)0.02 (−0.62 to 0.66)
Race/ethnicity
    White4.01 (2.91 to 4.60)3.90 (2.56 to 4.75)4.49 (4.12 to 4.86)5.11 (4.31 to 5.94).08* (.02 to .13)4.33 (4.06 to 4.60)0.33 (−0.44 to 1.09)
    Black3.54 (2.39 to 4.98)1.90 (0.00 to 5.34)3.45 (2.44 to 5.26)6.36 (0.36 to 11.32).13 (−.05 to .32)3.36 (2.66 to 4.32)−0.18 (−1.55 to 1.19)
    Hispanic or Latino2.98 (1.01 to 4.62)2.68 (0.00 to 3.90)4.58 (4.03 to 5.24)3.32 (0.30 to 6.36).06 (−.10 to .23)3.94 (3.36 to 4.50)0.96 (−2.32 to 4.23)
    Other2.38 (0.00 to 5.72)2.28 (0.00 to 9.13)4.88 (3.80 to 6.40)4.23 (2.35 to 8.41).17 (−.06 to .41)4.14 (3.19 to 4.94)1.76 (−0.38 to 3.90)
Parental education
    Less than high school2.24 (1.11 to 5.25)0.94 (0.00 to 6.22)5.16 (4.33 to 6.43)6.05 (1.83 to 9.69).23* (.07 to .39)4.43 (2.92 to 5.65)2.20* (0.52 to 3.87)
    High school graduate or equivalent3.71 (2.72 to 4.62)2.90 (0.53 to 6.06)4.01 (3.31 to 4.82)5.10 (2.69 to 7.45).11 (−.02 to .24)4.01 (3.52 to 4.50)0.30 (−0.96 to 1.56)
    Some college/vocational education3.85 (2.77 to 4.88)3.69 (2.49 to 5.16)5.13 (4.40 to 6.07)4.12 (2.72 to 6.03).07 (−.02 to .15)4.47 (4.09 to 4.84)0.62 (−0.34 to 1.58)
    College degree or higher3.51 (2.11 to 4.58)3.28 (1.49 to 4.20)3.55 (2.89 to 4.21)4.30 (3.16 to 5.37).04 (−.05 to .14)3.71 (3.22 to 4.16)0.20 (−1.85 to 2.25)
Household income
    ≤$25 0003.81 (2.64 to 4.77)3.13 (0.99 to 6.31)4.96 (4.32 to 6.06)6.08 (3.14 to 9.05).17* (.03 to .30)4.30 (3.79 to 4.81)0.49 (−0.56 to 1.54)
    $25 001–$50 0003.64 (2.73 to 4.80)3.36 (1.22 to 5.41)5.05 (4.48 to 5.64)4.01 (2.15 to 5.20).03 (−.10 to .15)4.55 (4.19 to 4.92)0.92* (0.12 to 1.71)
    $50 001–$75 0003.00 (1.85 to 4.28)2.87 (1.33 to 4.43)4.17 (3.40 to 4.74)6.93 (3.83 to 8.35).16* (.05 to .26)4.12 (3.50 to 4.56)1.12 (−0.13 to 2.38)
    ≥$75 0004.00 (2.38 to 4.89)3.05 (0.50 to 7.06)3.50 (2.87 to 4.18)3.96 (2.92 to 5.51).02 (−.07 to .10)3.45 (2.99 to 3.92)−0.55 (−2.60 to 1.51)
Urbanicity (quintile of population density)
    Urban2.17 (0.00 to 3.24)2.15 (0.00 to 4.07)4.12 (3.30 to 4.91)4.59 (2.35 to 12.04).24* (.09 to .38)3.33 (2.71 to 3.93)1.16* (0.35 to 1.97)
    Metropolitan suburban3.23 (1.77 to 4.74)3.28 (1.36 to 5.40)4.34 (3.72 to 4.91)4.19 (2.38 to 6.37).06 (−.06 to .18)4.01 (3.54 to 4.57)0.78 (−0.54 to 2.10)
    Second city4.18 (2.92 to 5.30)2.91 (1.50 to 5.56)4.99 (4.14 to 6.08)5.29 (1.75 to 7.84).04 (−.11 to .19)4.35 (3.78 to 4.95)0.17 (−0.81 to 1.16)
    Town/exurban4.39 (2.97 to 5.86)4.30 (2.72 to 5.85)4.43 (3.63 to 5.13)4.51 (3.37 to 5.63).01 (−.10 to .12)4.45 (4.04 to 4.86)0.07 (−0.71 to 0.84)
    Rural4.01 (2.26 to 5.30)2.23 (0.10 to 4.80)4.44 (3.43 to 5.43)5.66 (3.19 to 7.12).12* (.02 to .22)4.30 (3.66 to 4.85)0.29 (−0.95 to 1.54)
Free-time activity, ≥3 sessions in previous week
    Yes4.69 (4.17 to 5.49)3.62 (2.70 to 4.60)5.05 (4.73 to 5.56)6.02 (4.71 to 6.95).08* (.01 to .15)4.91 (4.66 to 5.29)0.22 (−0.28 to 0.72)
    No (“low active”)1.48 (0.79 to 2.11)1.51 (0.00 to 3.15)2.92 (2.40 to 3.48)2.53 (1.35 to 4.17).11* (.02 to .21)2.32 (2.01 to 2.63)0.84* (0.27 to 1.42)
  • * Significant difference at P < .05, representing a positive directional change for the campaign.

  • Children were 9 to 13 years of age when interviewed in the baseline survey in spring 2002.

  • See Claritas Prizm for variable definitions (www.claritas.com).