Table 1

Baseline BMI and behavioral measures by participant and staff demographic and socioeconomic characteristics

BMI (n = 2,553)RAPA (n = 2,240)Healthy diet (n = 2,357)Unhealthy diet (n = 2,355)
n (%)Mean (SD)PaMean (SD)PaMean (SD)PaMean (SD)Pa
Total2,553 (100.0)35.82 (7.34)3.75 (1.08)3.39 (0.82)2.87 (0.72)
Participant characteristics
 Sex
  Female1,901 (74.5)35.97 (7.37)0.083.62 (1.08)<0.00013.41 (0.81)0.222.82 (0.69)<0.0001
  Male (ref)652 (25.5)35.39 (7.24)4.11 (1.01)3.36 (0.83)3.05 (0.76)
 Age<0.0001b0.03b0.0001b<0.0001b
  18 to <40 years731 (28.6)37.84 (7.57)<0.00013.66 (1.14)0.013.32 (0.83)<0.00013.07 (0.69)<0.0001
  40 to <50 years774 (30.3)36.44 (7.59)<0.00013.73 (1.06)0.133.37 (0.80)0.00072.92 (0.70)<0.0001
  50 to <60 years645 (25.3)34.33 (6.64)0.033.80 (1.04)0.633.41 (0.82)0.012.80 (0.71)<0.0001
  ≥60 years (ref)403 (15.8)33.34 (6.21)3.84 (1.07)3.55 (0.80)2.54 (0.68)
 Education status0.004b<0.0001b<0.0001b0.03b
  <High school graduate318 (14.1)36.68 (8.17)0.0064.03 (1.07)0.00013.32 (0.87)<0.00012.93 (0.75)0.006
  High school graduate477 (21.1)36.61 (7.71)0.0043.74 (1.10)0.803.34 (0.81)<0.00012.89 (0.71)0.03
  Some college1,024 (45.4)35.61 (6.95)0.323.69 (1.09)0.583.36 (0.83)<0.00012.88 (0.71)0.02
  ≥College graduate (ref)438 (19.4)35.20 (7.14)3.72 (1.03)3.56 (0.75)2.79 (0.69)
 Employment status<0.0001b0.03b<0.0001b<0.0001b
  Retired168 (7.5)32.59 (6.12)<0.00013.92 (1.09)0.023.68 (0.83)<0.00012.41 (0.65)<0.0001
  Unemployed/student416 (18.5)36.91 (8.23)0.023.80 (1.09)0.173.42 (0.81)0.082.93 (0.77)0.56
 Employed (ref)1,665 (74.0)35.95 (7.12)3.71 (1.08)3.34 (0.81)2.91 (0.69)
 Marital status<0.0001b0.50b0.07b<0.0001b
  Separated/divorced/widowed510 (25.2)34.65 (6.69)0.0053.76 (1.12)0.533.38 (0.80)0.342.77 (0.74)0.006
  Never married323 (16.0)38.29 (9.04)<0.00013.72 (1.11)0.263.30 (0.87)0.023.06 (0.78)<0.0001
  Married/live together (ref)1,189 (58.8)35.76 (7.20)3.80 (1.05)3.42 (0.80)2.87 (0.69)
 Annual household income0.33b0.0006b<0.0001b0.002b
  <$15,000371 (19.4)36.11 (8.26)0.283.91 (1.06)0.0063.36 (0.89)0.0012.96 (0.83)0.001
  $15,000 to <$30,000411 (21.5)36.44 (7.58)0.073.80 (1.09)0.213.36 (0.82)0.00082.95 (0.70)0.002
  $30,000 to <$50,000569 (29.8)36.02 (6.90)0.313.62 (1.10)0.183.31 (0.84)<0.00012.87 (0.68)0.11
  ≥$50,000 (ref)558 (29.2)35.57 (7.06)3.71 (1.05)3.53 (0.70)2.80 (0.67)
Staff characteristics
 Proportion of female staff
  ≤70%562 (23.4)36.44 (7.62)0.013.72 (1.08)0.303.48 (0.82)0.032.80 (0.71)0.01
  >70% (ref)1,839 (76.6)35.55 (7.28)3.77 (1.08)3.40 (0.82)2.89 (0.72)
 Average age of staff members
  <40 years835 (34.8)35.20 (7.24)0.0073.78 (1.09)0.493.44 (0.83)0.342.92 (0.75)0.01
  ≥40 years (ref)1,566 (65.2)36.05 (7.42)3.75 (1.07)3.41 (0.81)2.84 (0.70)
 Proportion of staff with graduate or professional degree
  <50%1,257 (52.4)35.36 (7.27)0.0063.73 (1.08)0.213.38 (0.85)0.052.89 (0.74)0.15
  ≥50% (ref)1,144 (47.6)36.19 (7.45)3.79 (1.08)3.45 (0.78)2.85 (0.70)
  • 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.