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Table 1 Clinical characterization of the Pronmed cohort analyzed as the discovery set, and the Biobanque Québécoise de la COVID-19 (BQC19) cohort used for validation

From: Dehydration is associated with production of organic osmolytes and predicts physical long-term symptoms after COVID-19: a multicenter cohort study

 

Pronmed

BQC19

n

165

Missing (%)

1052

Missing (%)

Women (%)

42 (25.5)

0

572 (54.4)

0

Age (mean ± SD)

63 ± 14

0

63 ± 20

2 (0.2)

max eOSM (mean ± SD)

318 ± 19

0

304 ± 16

0

Hospitalized (%)

165 (100)

0

885 (90.6)

75 (7.1)

ICU admission (%)

165 (100)

0

304 (34.7)

9 (0.9)

Invasive ventilation (%)

126 (76.4)

0

74 (7.2)

21 (2.0)

Acute kidney injury (%)

106 (64.6)

1 (0.6)

238 (24.5)

8 (0.8)

Death (%)

49 (29.9)

1 (0.6)

122 (12.6)

81 (7.7)

Long-COVID

    

n

54

Missing (%)

615

Missing (%)

Time to Follow-up (median[IQR])

139 [123–181]

0

101 [66–184]

0

Physical (mean ± SD)

0.28 ± 0.20

3 (5.5)

0.24 ± 0.30

33 (5.4)

Mental (mean ± SD)

0.23 ± 0.16

10 (18)

0.20 ± 0.22

16 (2.6)

  1. Total number of patients correspond to those with lab data on dehydration, total number of long COVID corresponds to the number of patients with lab data that also completed any follow-up. Long COVID is expressed as a mean score between zero and one for questionnaire parameters pertaining to either physical or mental remaining symptoms. SD: Standard Deviation, IQR: inter quartile range