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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Respir Med. 2021 Apr 30;183:106434. doi: 10.1016/j.rmed.2021.106434

Table 4:

Association of obesity-related inflammatory pathways with cardiopulmonary exercise test (CPET) and pulmonary vascular (PV) parameters

Adiponectin Leptin Resistin IL-6 CRP HOMA-IR
CPET parameters beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value
Peak V02, ml/kg/min 0.08 0.18 0.67 −1.88 0.25 <0.0001 −0.53 0.16 0.001 −0.57 0.16 <0.0001 −0.87 0.17 <0.0001 −1.02 0.24 <0.0001
% pred VO2 0.20 0.74 0.79 −6.11 1.05 <0.0001 −2.36 0.67 <0.0001 −2.58 0.67 <0.0001 −3.54 0.72 <0.0001 −3.67 1.00 <0.0001
Work, watts −2.31 1.55 0.14 −7.68 2.24 0.001 −4.16 1.42 0.003 −4.01 1.42 0.005 −5.90 1.52 <0.0001 −3.87 2.12 0.07
Peak RER −0.005 0.005 0.33 0.02 0.008 0.009 0.003 0.005 0.52 −0.01 0.005 0.003 0.001 0.005 0.86 0.001 0.007 0.92
PETCO2 at AT 0.45 0.35 0.19 −0.43 0.54 0.42 −0.42 0.34 0.22 0.42 0.31 0.18 0.35 0.36 0.33 0.28 0.43 0.52
Breathing reserve −1.34 0.88 0.13 0.23 1.29 0.86 1.44 0.81 0.08 0.31 0.83 0.71 −0.46 0.88 0.60 −0.77 1.22 0.53
Oxygen pulse −0.28 0.11 0.01 −0.61 0.16 <0.0001 −0.12 0.10 0.24 −0.19 0.10 0.07 −0.40 0.11 <0.0001 −0.35 0.15 0.02
Adiponectin Leptin Resistin IL-6 CRP HOMA-IR
PV Parameters beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value beta s.e. p-value
PAP/CO slope 0.31 0.14 0.03 −0.25 0.21 0.23 0.06 0.13 0.66 0.24 0.13 0.07 0.44 0.14 0.002 0.05 0.16 0.78
PCWP/CO slope 0.28 0.10 0.007 −0.19 0.15 0.21 0.03 0.10 0.73 0.12 0.09 0.20 0.30 0.10 0.003 −0.07 0.12 0.55
TPG/CO slope 0.03 0.09 0.71 −0.06 0.14 0.64 0.03 0.09 0.71 0.12 0.09 0.17 0.15 0.09 0.11 0.12 0.09 0.20
Pulm disten (alpha) −0.09 0.04 0.05 0.03 0.06 0.62 −0.03 0.04 0.42 −0.12 0.04 0.003 −0.09 0.04 0.04 −0.08 0.06 0.21
PAC −0.06 0.04 0.12 −0.11 0.06 0.05 −0.04 0.04 0.24 −0.12 0.04 0.001 −0.11 0.04 0.006 −0.13 0.05 0.02
RVEF (peak) −1.70 0.40 <0.0001 1.68 0.58 0.004 −0.24 0.38 0.53 −0.76 0.36 0.04 −0.51 0.40 0.20 0.41 0.55 0.46

Multivariable model adjusted for age, sex, smoking status, previous MI, heart failure, and BMI

Abbreviations: VO2, peak oxygen consumption; VE/VCO2 slope, minute ventilation/carbon dioxide production; RER, respiratory exchange ratio; PETCO2 at AT, Postapneic End-Tidal Carbon Dioxide Pressure at Anaerobic Threshold; PAP/CO; pulmonary artery pressure/cardiac output; PCWP/CO; pulmonary capillary wedge pressure/cardiac output; TGP/CO, transpulmonary gradient pressure/cardiac output; PAC, pulmonary artery compliance; RVEF, Right ventricular ejection fraction; IL-6, interleukin-6; CRP, C-Reactive protein; HOMA-IR, homeostatic model assessment of insulin resistance