Signed weight loss contract

n = 249

n = 622

0.80

Percentage who lost weight (total)

59.83 (149)

55.95 (348)

Average weight change, lbs

-2.32 ± 13.6

-2.58 ± 15.2

Median weight change, lbs

-1.3

-1.1

Received health education

n = 278

n = 593

Percentage who lost weight (total)

59.0 (164)

56.15 (333)

0.56

Average weight change, lbs

-2.08 ± 14.2

-2.71 ± 14.9

Median weight change, lbs

-1.4

-1

Standard error

0.85

0.61

Met with naturopath /dietician?

n = 180

n = 691

Percentage who lost weight (total)

60.9 (109)

55.9 (388)

0.02

Average weight change, lbs

-4.77 ± 18.8

-1.92 ± 13.4

Median weight change, lbs

-2.2

-1

Followed up with provider?

n = 285

n = 586

Percentage who lost weight (total)

65.20 (186)

52.98 (311)

Average weight change, lbs

-4.62 ± 16.9

-1.48 ± 13.4

0.003

Median weight change, lbs

-2.4

-0.6