. Author manuscript; available in PMC: 2021 Apr 1.

Published in final edited form as: Dig Dis Sci. 2019 Aug 5;65(4):1144–1154. doi: 10.1007/s10620-019-05714-3

Table 2.

Regression models.

Model	PC1	PC2	Time from Sx	Pre-Sx BMI	Ethnicity	Constant	R²
	Unstd B (SE)/Std B	Unstd B (SE)/Std B	Unstd B (SE)/Std B	Unstd B (SE)/Std B	Unstd B (SE)/Std B	Unstd B (SE)
1	0.101^** (0.034)/0.456					0.273 (0.034)	0.208
2		−0.088^* (0.035)/−0.395				0.273 (0.035)	0.156
3			0.032^** (0.009)/0.532			0.043 (0.072)	0.283
4	0.101^** (0.031)/0.456	−0.088^** (0.031)/−0.395				0.273 (0.031)	0.364
5	0.084^** (0.029)/0.379	−0.067^* (0.029)/−0.304	0.023^** (0.008)/0.384			0.107 (0.064)	0.497
6	0.084^** (0.029)/0.381	−0.068^* (0.030)/−0.308	0.022^* (0.008)/0.377	0.01 (0.004)/0.025		0.076 (0.182)	0.498
7	0.101^** (0.032)/0.454	−0.082^* (0.034)/−0.369			0.031 (0.068)/0.069	0.230 (0.102)	0.369

Dependent variable: Weight Regain.

Degrees of freedom: 34

Unstd B: Unstandardized coefficient

Std B: Standardized coefficient

SE: Standard error

Sx: Surgery

p<0.05

^**

p<0.001