Clinical Characteristics and Prognosis of Influenza B Virus-Related Hospitalizations in Northern China during the 2017-18 Influenza Season: A Multicenter Case Series

Table 2

Laboratory findings and chest radiologic characteristics of IBV-related hospitalizations (comparison between survivors and nonsurvivors).

Characteristics	All cases (n = 22)	Survivors (n = 16)	Nonsurvivors (n = 6)	value
Laboratory findings
pH	7.40 (7.34–7.46)	7.40 (7.34–7.46)	7.42 (7.32–7.45)	0.802
PCO2 (mmHg)	35.3 (30.7–53.0)	36.5 (31.6–35.3)	29.6 (24.3–40.1)	0.294
WBC (10^9/L)	9.60 (5.60–17.80)	7.98 (5.60–15.90)	17.40 (5.96–25.12)	0.494
Lymphocyte (10^9/L)	0.60 (0.19–0.91)	0.60 (0.18–0.97)	0.62 (0.40–0.78)	0.914
Hematocrit (%)	33.1 (29.6–41.4)	35.0 (29.3–42)	33.1 (30.9–37.7)	0.914
Platelet (10^9/L)	177 (148–255)	231 (165–269)	152 (97–168)	0.049
ALT (U/L)	28.8 (14.3–41.4)	30.1 (13.6–41.3)	21.0 (15.3–40.3)	0.747
ALB (g/L)	28.8 (27.2–31.8)	28.5 (27.3–32.0)	30.0 (26.8–31.8)	0.971
LDH (U/L)	389 (341–625)	380 (309–513)	609 (473–625)	0.776
CK (U/L)	96 (66–371)	88 (66–245)	200 (84–506)	0.541
DBil (mmol/L)	4.8 (2.2–18.7)	3.2 (2.0–5.4)	20.8 (8.9–31.1)	0.013
Cr (μmol/L)	71.5 (60.3–111.5)	67.0 (55.8–83.8)	97.5 (68.3–122.3)	0.294
Na (mmol/L)	139.5 (134.3–142.8)	140.4 (134.4–142.4)	137 (134–144)	0.914
Chest radiography
Pleural effusion	8 (36.4)	6 (37.5)	2 (33.3)	1.000
Diffuse ground-glass opacities	5 (22.7)	4 (25)	1 (16.7)	1.000
Focal or lobar consolidation	10 (45.5)	7 (43.8)	3 (50)	1.000
Bilateral diffuse interstitial infiltrates	3 (13.6)	1 (6.3)	2 (33.3)	0.169
Bilateral diffuse alveolar infiltrates	15 (68.2)	11 (68.8)	4 (66.7)	1.000

WBC, white blood cell; ALT, alanine aminotransferase; ALB, albumin; LDH, lactate dehydrogenase; CK, creatine kinase; DBil, direct bilirubin; Cr, creatinine. Statistically significant.