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. 2021 Sep 8;12:704062. doi: 10.3389/fphys.2021.704062

Table 4.

Average (SDs) for the loadings of the selected cardiorespiratory variables onto PC2.

Non-Down Syndrome Down Syndrome
VE FeO2 FeCO2 HR SBP DBP VE FeO2 FeCO2 HR SBP DBP
Mean 0.25 0.50 −0.25 0.15 0.07 0.14 0.16 0.18* −0.04 0.04 0.43* 0.54*
SD 0.29 0.66 0.58 0.27 0.30 0.37 0.32 0.63 0.48 0.33 0.43 0.36
*

p < 0.05; VE, minute ventilation; FeO2, expired fraction of O2; FeCO2, expired fraction of CO2; HR, heart rate; SBP, systolic blood pressure; DBP, diastolic blood pressure.