. Author manuscript; available in PMC: 2022 Oct 1.

Published in final edited form as: Neurogastroenterol Motil. 2021 Apr 2;33(10):e14126. doi: 10.1111/nmo.14126

Table 5.

Modified multiple variable models to predict anal pressure during evacuation from anal pressures during a Valsalva Maneuver ¹

Comparisons	Predictor variable	Estimate (95% CI)	P value	Model P value	Adjusted R² value
Anal pressure during evacuation in constipation-abnormal BET and constipation-normal BET versus healthy women (Model 1)	Intercept	54 (39, 68)	<.0001	<.0001	41%
	VM–25	0.12 (−0.08, 0.3)	.2
	VM–25*C-normal BET	0.2 (−0.04, 0.4)	.1
	VM–25*C-abnormal BET	0.52 (0.3, 0.7)	<.0001
	C-normal BET	−6 (−23, 11)	.5
	C-abnormal BET	−18 (−38, 2)	.08
Anal pressure during evacuation in constipation-abnormal BET and constipation-normal BET versus healthy women (Model 2)	Intercept	46 (39, 53)	<.0001	<.0001	40%
	VM–25	0.22 (0.1, 0.3)	.0002
	VM–25*C-normal BET	0.12 (0.02, 0.2)	.01
	VM–25*C-abnormal BET	0.32 (0.2, 0.4)	<.0001