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Table 1 Main baseline characteristics of all positive blood cultures included in the study stratified with respect of the period of the pandemic

From: The effect of the COVID-19 pandemic on the epidemiology of positive blood cultures in Swiss intensive care units: a nationwide surveillance study

 

First wave March 30May 11 2020

Interim period May 12October 18 2020

Second wave October 19 2020May 31 2021

p value*

Total number of episodes

n = 301

n = 753

n = 1661

 

Age ≥ 60 years, n (%)

147 (48.8)

434 (57.6)

994 (59.8)

 < 0.01

Female sex, n (%)

83 (27.6)

206 (27.4)

492 (29.6)

0.47

Episodes originating at a university hospital, n (%)

74 (24.6)

308 (40.9)

528 (31.8)

 < 0.01

Blood culture contaminations n (%)

125 (41.5)

268 (35.6)

706 (42.5)

 < 0.01

  1. *Proportion comparison between the different groups performed with the Chi-square test