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Table 6 Difference in clinical manifestations and laboratory examination between pathogen positive and negative pertussis - like syndrome among those who were B. pertussis negative

From: Pathogen analysis of pertussis-like syndrome in children

 Pathogen positive n = 72Pathogen negative n = 60Χ2/tP
age0.67 ± 1.480.69 ± 1.28−0.0640.949
Sex M/F26/4631/293.2280.080
vaccination33(45.8%)24(40%)0.4540.597
hospital stay (d)10.14 ± 3.549.63 ± 3.990.7710.442
paroxysmal cough66(91.6%)51(85%)1.4440.277
apnea0(0%)1(1.7%)1.2090.455
inspiratory whoop12(16.7%)8(13.3%)0.2830.634
asphyxia0(0%)1(1.7%)1.2090.455
turn red in the face61(84.7%)48(80%)0.5070.498
Severe pneumonia2(2.8%)1(1.7%)0.1821.000
post-cough vomiting18(25.0%)14(23.3%)0.0500.842
respiratory failure1(1.4%)0(0%)0.8401.000
Paroxysmal cyanosis12(16.7%)11(18.3%)0.0630.822
pertussis encephalopathy0(0%)0(0%)
hyoxemia3(4.2%)2(3.3%)0.0621.000
pulmonary arterial hypertension0(0%)0(0%)
white blood cell16.40 ± 10.7115.39 ± 7.580.6150.540
neutrophil10.06 ± 7.058.47 ± 5.611.4180.159
lymphocyte4.95 ± 3.955.64 ± 4.37−0.9550.342
blood platelet467.56 ± 128.98440.05 ± 113.911.2860.201
elevated ALT19(26.4%)19(31.7%)0.4450.565
elevated AST11(15.3%)12(20.0%)0.5070.498
elevated CRP5(6.9%)3(5.0%)0.2170.728
elevated CKMB39(54.2%)26(43.3%)1.5370.227
CD19 + CD23+14.24 ± 5.9813.31 ± 6.130.8650.389
CD364.70 ± 9.0265.29 ± 8.65−0.3700.712
CD3 + CD4+40.13 ± 7.9940.37 ± 9.52−0.1470.884
CD3 + CD8+21.63 ± 5.7621.74 ± 5.94−0.0950.925
CD3-(CD16 + CD56)+8.40 ± 5.078.75 ± 6.59−0.3480.729
CD3-CD19+25.17 ± 9.9323.87 ± 9.840.7350.464
CD4/CD81.99 ± 0.672.08 ± 0.98−0.5730.567