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. 2012 Dec 17;14(6):e168. doi: 10.2196/jmir.2218

Table 1.

Baseline characteristics of participants.

Characteristics All participants
(n=2053)
Returning participants
(n=504)
F test, returning & nonreturning
(P value)
Age (years) a 39.8 (12.80) 42.6 (12.08) 32.737 (< 0.001)
Female b 1829 (89) 458 (91) 1.215 (0.270)
White/Caucasian b 1840 (90) 463 (92) 3.608 (0.058)
United States b 1672 (81) 410 (81) 0.004 (0.951)
College degree b 1641 (80) 423 (84) 6.667 (0.010)
Household income < $50,000 b 558 (27) 114 (23) 3.673 (0.055)
Weight (lbs) a 172.2 (42.28) 168.9 (37.80) 4.119 (0.043)
Body mass index a 28.1 (6.51) 27.9 (6.24) 1.030 (0.310)
Initial eating goal b
Lose weight 1709 (83) 455 (88) 0.601 (0.438)
Maintain weight 106 (5) 24 (5) 0.219 (0.639)
Eat healthier 197 (10) 30 (6) 10.262 (0.001)
Help family eat better 37 (2) 5 (1) 2.478 (0.116)

a Values are expressed as mean (SD).

b Values are expressed as n (%).