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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Obesity (Silver Spring). 2012 May 4;20(12):2354–2360. doi: 10.1038/oby.2012.120

Table 3.

Univariate regression analysis of end-expiratory esophageal pressures

Sitting PEs Supine PEs
R2 R2
BMI 0.49# 0.19#
Weight 0.35# 0.16*
Height 0.06 0.02
Gender 0.07 0
Asthma dx 0.10 0.01
Body
Measurements 		Neck 0.27# 0.13*
Chest 0.39# 0.22#
Waist 0.51# 0.25#
Hip 0.37# 0.11*
Waist/Hip 0.23# 0.23#
Spirometry
Sitting 		FEV1 0.25# 0.13*
FEV1 %pred 0.23# 0.15*
FVC 0.36# 0.16*
FVC %pred 0.48# 0.24#
FEV1/FVC 0 0
Spirometry
Supine 		FEV1 0.23# 0.13*
FEV1 %pred 0.21# 0.16*
FVC 0.33# 0.16*
FVC %pred 0.41# 0.22#
Multivariate regression analysis of end-expiratory esophageal pressures
Coefficient Standard Error of
coefficient 		Standardized coefficient
Sitting
Waist circumference 0.067 0.016 0.50
FVC %predicted,
sitting		 −0.071 0.021 −0.42
p = <0.001 R2 = 0.66
Supine
Waist/hip ratio 12.64 5.97 0.337
FVC %predicted,
sitting		 −0.08 0.037 −0.346
p = 0.002 R2 = 0.33
*

p<0.05

#

p<0.01