Table 2

Improvements in weight, BMI, and behavioral outcomes at postcurriculum assessment by participant and staff demographic and socioeconomic characteristics (among completers of postcurriculum assessments only)

Change in outcome variables (postcurriculum – baseline)
% Weight change (n = 1,883)BMI (n = 1,883)RAPA (n = 1,595)Healthy diet (n = 1,604)Unhealthy diet (n = 1,606)
n (%)Mean (SD)PaMean (SD)PaMean (SD)PaMean (SD)PaMean (SD)Pa
Total1,883 (100.0)−3.8 (0.04)−1.39 (1.71)0.57 (1.15)0.35 (0.73)−0.50 (0.65)
Baseline participant characteristics
 Sex
  Female1,414 (75.1)−3.7 (0.04)0.003−1.31 (1.66)0.0010.62 (1.17)0.0060.35 (0.72)0.92−0.50 (0.65)0.69
  Male (ref)469 (24.9)−4.4 (0.05)−1.61 (1.85)0.43 (1.09)0.35 (0.74)−0.52 (0.65)
 Age<0.0001b0.02b0.55b0.34b0.12b
  18 to <40 years491 (26.1)−3.4 (0.04)<0.0001−1.27 (1.78)0.0020.58 (1.21)0.450.32 (0.74)0.85−0.57 (0.72)0.03
  40 to <50 years576 (30.6)−3.6 (0.05)<0.0001−1.35 (1.83)0.010.52 (1.13)0.150.39 (0.74)0.14−0.49 (0.62)0.51
  50 to <60 years497 (26.4)−4.0 (0.05)0.01−1.37 (1.63)0.030.57 (1.12)0.370.37 (0.72)0.29−0.50 (0.64)0.41
  ≥60 years (ref)319 (16.9)−4.8 (0.04)−1.65 (1.48)0.65 (1.16)0.31 (0.68)−0.45 (0.59)
 Education status0.05b0.06b0.16b0.75b0.57b
  <High school graduate215 (12.5)−4.3 (0.05)0.59−1.53 (1.76)0.720.39 (1.20)0.050.35 (0.82)0.47−0.44 (0.70)0.25
  High school graduate359 (20.9)−4.1 (0.05)0.89−1.46 (1.81)0.910.59 (1.19)0.970.34 (0.75)0.33−0.52 (0.64)0.78
  Some college786 (45.7)−3.5 (0.04)0.06−1.27 (1.62)0.050.60 (1.18)0.940.35 (0.71)0.34−0.50 (0.64)0.90
  ≥College graduate (ref)359 (20.9)−4.1 (0.04)−1.48 (1.62)0.59 (1.03)0.40 (0.65)−0.50 (0.61)
 Employment status0.0001b0.01b0.77b0.29b0.06b
  Retired143 (8.4)−5.4 (0.04)<0.0001−1.80 (1.38)0.0030.65 (1.16)0.500.31 (0.60)0.36−0.37 (0.60)0.02
  Unemployed/student276 (16.1)−3.7 (0.05)0.93−1.33 (1.87)0.800.56 (1.26)0.870.31 (0.84)0.17−0.49 (0.74)0.52
  Employed (ref)1,290 (75.5)−3.8 (0.04)−1.36 (1.67)0.57 (1.13)0.38 (0.71)−0.52 (0.63)
 Marital status0.0004b0.01b0.66b0.44b0.01b
  Separated/divorced/widowed384 (24.9)−3.6 (0.04)0.02−1.27 (1.55)0.030.57 (1.23)0.820.35 (0.74)0.99−0.42 (0.70)0.003
  Never married232 (15.0)−3.0 (0.05)0.0002−1.19 (1.81)0.020.48 (1.15)0.430.28 (0.79)0.22−0.52 (0.72)0.61
  Married/live together (ref)926 (60.1)−4.2 (0.04)−1.49 (1.71)0.55 (1.10)0.35 (0.69)−0.55 (0.61)
 Annual household income0.009b0.003b0.07b0.08b0.20b
  <$15,000254 (17.3)−3.1 (0.05)0.001−1.09 (1.79)0.00030.41 (1.22)0.050.36 (0.82)0.37−0.43 (0.80)0.03
  $15,000 to <$30,000313 (21.3)−3.6 (0.04)0.05−1.30 (1.62)0.030.57 (1.09)0.720.27 (0.72)0.01−0.51 (0.63)0.44
  $30,000 to <$50,000452 (30.7)−3.7 (0.04)0.07−1.33 (1.55)0.030.67 (1.20)0.420.40 (0.71)0.77−0.50 (0.62)0.33
  ≥$50,000 (ref)453 (30.8)−4.3 (0.05)−1.57 (1.80)0.60 (1.14)0.41 (0.68)−0.55 (0.60)
Staff characteristics
 Proportion of female staff
  ≤70%431(24.3)−3.9 (0.05)0.75−1.43 (1.69)0.660.62 (1.14)0.390.38 (0.66)0.36−0.49 (0.65)0.55
  >70% (ref)1,342 (75.7)−3.9 (0.05)−1.39 (1.74)0.56 (1.16)0.34 (0.75)−0.51 (0.66)
 Average age of staff members
  <40 years562 (31.7)−4.1 (0.05)0.23−1.44 (1.72)0.570.61 (1.13)0.510.37 (0.74)0.42−0.56 (0.65)0.05
  ≥40 years (ref)1,211 (68.3)−3.8 (0.05)−1.39 (1.73)0.56 (1.16)0.34 (0.73)−0.48 (0.65)
 Proportion of staff with graduate  or professional degree
  <50%946 (53.4)−3.5 (0.04)0.0002−1.27 (1.62)0.00040.60 (1.12)0.400.31 (0.75)0.02−0.54 (0.66)0.03
  ≥50% (ref)827 (46.6)−4.3 (0.05)−1.56 (1.83)0.55 (1.19)0.40 (0.70)−0.46 (0.65)
  • ref, reference group. Boldface data indicate P ≤ 0.05.

  • aTwo-sided P value for each dummy variable from univariate regression analysis unless otherwise noted.

  • bP value of χ2 test for cross tabulation.