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Volume 27, Number 1—January 2021
Research

Precise Species Identification by Whole-Genome Sequencing of Enterobacter Bloodstream Infection, China

Wenjing Wu1, Li Wei1, Yu Feng, Yi Xie, and Zhiyong ZongComments to Author 
Author affiliations: West China Hospital, Sichuan University, Chengdu, China (W. Wu, L. Wei, Y. Feng, Y. Zie, Z. Zong); State Key Laboratory of Biotherapy, Chengdu (W. Wu, Y. Feng, Z. Zong)

Main Article

Table 3

Patient demographics, types of bloodstream infection, and outcomes in patients with bloodstream infection caused by E. xiangfangensis plus taxon 1 and other Enterobacter species, China*

Characteristic E. xiangfangensis and taxon 1, n = 29 Other species, n = 19 χ2 p value Power†
Age, y, median (IQR) 15 (8–32) 52 (16–71) – 0.958 0.085
Male sex 19 (65.5) 14 (73.7) 0.356 0.551 0.084
MDR 16 (55.2) 2 (10.6) 9.763 0.002 –
Primary BSI 24 (82.8) 12 (63.2) 1.423 0.233 0.317
CLABSI 11 (27.9) 5 (17.2) 0.697 0.404 0.115
HA BSI 27 (93.1) 14 (73.7) 2.091 0.148 0.430
Deaths 6 (20.7) 3 (15.8) 0.176 0.675 0.053
Total time hospitalized, d, median (IQR)‡ 33 (19–47) 20 (2–40) – 0.098 0.265
Time hospitalized before BSI onset, d, median (IQR)‡ 11 (5–7) 5 (1–18) – 0.154 0.070
Time hospitalized after BSI onset, d, median (IQR) 15 (8–32) 13 (8–19) – 0.357 0.384

*Values are no. (%) except as indicated. Bold indicates significance. BSI, bloodstream infection; CLABSI, central line–associated bloodstream infection; HA BSI, healthcare-associated bloodstream infection; IQR, interquartile range; MDR, multidrug resistance; –, not calculated. 
†Statistical power was calculated for parameters without statistical significance (p>0.05). 
‡One patient belonging to the other species group had an unusually lengthy hospitalization (578 d) because of a medical dispute and was therefore removed from the analysis of hospitalization time.

Main Article

1These authors contributed equally to this article.

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Page updated: December 21, 2020
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