Research Article

Motivation for Participating in a Weight Loss Program and Financial Incentives: An Analysis from a Randomized Trial

Table 1

Baseline demographic characteristics.

All participantsWEBWPI 𝑃 value
( 𝑁 = 5 9 4 )( 𝑛 = 3 2 5 )( 𝑛 = 2 6 9 )

Age (years; M ± SD)47.68 ± 9.7247.61 ± 10.03 4 7 . 7 5 ± 9 . 3 5 0.86
Weight (kg)92.87 ± 20.2793.83 ± 20.7591.71 ± 19.660.21
BMI (kg/m2) 3 3 . 5 0 ± 6 . 5 9 3 3 . 3 6 ± 6 . 5 8 33.65 ± 6.620.60
Autonomous motivation 5 . 6 6 ± 0 . 9 5 5 . 6 3 ± 1 . 0 0 5 . 6 8 ± 0 . 8 8 0.55
Controlled motivation 2 . 2 4 ± 1 . 0 5 2 . 2 6 ± 1 . 0 7 2 . 2 1 ± 1 . 0 2 0.59
College education or higher (n, %)369 (62.1%)204 (62.8)165 (61.3)0.74
Female463 (77.9)237 (72.9)226 (84.0)<0.001
Married413 (69.5)230 (70.8)183 (68.0)0.52
White/Non-Hispanic487 (82.0)268 (82.5)219 (81.4)0.86

N o t e . Values are mean ± standard deviation. No responses were given for specific demographic questions: education status ( 𝑛 = 2 8 ), gender ( 𝑛 = 2 8 ), marital status ( 𝑛 = 2 9 ), and race ( 𝑛 = 3 1 ).