Table 3 Baseline cardiopulmonary variables in controls versus long COVID

From: Carotid body dysregulation contributes to Long COVID symptoms

Baseline cardiopulmonary data

Controls (n = 14)

Long COVID (n = 14)

P-value

SBP (mmHg)

112 ± 9

118 ± 16

0.1603

DBP (mmHg)

75 ± 8

80 ± 16

0.1985

HR (beats/min)

76 ± 9

83 ± 11

0.0886

VE (L/min)

9.2 ± 2.1

10.1 ± 2.8

0.3434

VT (mL)

609 ± 115

659 ± 173

0.3546

fB (breaths/min)

15 ± 3

16 ± 3

0.8938

Ti (secs)

1.65 ± 0.37

1.60 ± 0.41

0.7934

Te (secs)

2.86 ± 0.61

2.77 ± 0.81

0.7509

Ti/Te

0.59 ± 0.08

0.59 ± 0.12

0.9062

VT /Ti

0.37 ± 0.07

0.43 ± 0.09

0.0483

PETCO2 (mmHg)

33.5 ± 2.6

30.9 ± 3.7

0.0378

VO2 (L/min)

0.25 ± 0.05

0.24 ± 0.05

0.5781

VCO2 (L/min)

0.22 ± 0.04

0.21 ± 0.05

0.8006

VE/VCO2 ratio

42.2 ± 4.4

48.0 ± 8.3

0.0246

  1. SBP systolic blood pressure, DBP diastolic blood pressure, HR heart rate, VE minute ventilation, VT tidal volume, fB breathing frequency, Ti inspiratory time, Te expiratory time, VT /Ti inspiratory flow index, PETCO2 end-tidal partial pressure of carbon dioxide, VO2 volume of inspired oxygen, VCO2 volume of expired carbon dioxide. Mean ± SD. Data compared via unpaired Student’s t-test. Bold data are where P < 0.05.
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