Emphasising Personal Investment Effects Weight Loss and Hedonic Thoughts about Food after Obesity Surgery

Table 1

Group characteristics of experimental conditions.

Variable	Control (𝑛=46)	Investment (𝑛=45)	𝑡 or 𝜒	𝑃
	Mean (SD)	Mean (SD)
Age	45.17 (9.50)	44.56 (8.68)	𝑡(89)=0.32	0.74
Gender	M = 4, F = 42	M = 4, F = 41	𝜒(1)=0.001	0.97
BMI	36.85 (10.48)	35.39 (8.78)	𝑡(89)=0.71	0.47
Surgery type			𝜒(3)=5.10	0.16
Gastric band	12	4
RNY gastric bypass	26	33
Duodenal switch	4	3
Other	4	5
Time since surgery (mths)	22.96 (29.88)	27.48 (27.70)	𝑡(89)=−0.749	0.45
Weight loss after surgery (Kg)	36.84 (27.99)	47.33 (28.63)	𝑡(89)=−1.76	0.08

Source: postsurgery participant data.