Table 2 Demographic data and clinical and laboratory characteristics of the severe and mild MPP groups.

From: Immunosuppression Reduces Lung Injury Caused by Mycoplasma pneumoniae Infection

  Mild MPP (n = 569) Severe MPP (n = 220) P value
Age, years 3.32 ± 2.68 4.19 ± 2.98 0.000
Sex (male/female) 313/256 115/105 0.524
Duration of fever before hospitalization, days 4.23 ± 3.31 5.47 ± 4.03 0.000
Length of hospitalization, days 8.16 ± 2.22 9.6 ± 3.95 0.000
Fever, n (%) 476 (83.65%) 191 (86.81) 0.323
Cough, n (%) 569 (100%) 219 (99.5%) 1.000
Wheezing, n (%) 160 (28.11%) 66 (30.00%) 0.599
WBC × 109/L 9.71 ± 4.31 10.03 ± 5.00 0.367
Neutrophils, % 52.68 ± 16.64 58.80 ± 17.59 0.000
Lymphocytes, % 37.75 ± 28.47 32.51 ± 16.33 0.048
Platelets × 109/L 275.72 ± 28.47 301.59 ± 116.85 0.004
LDH, U/L 382.16 ± 222.91 387.81 ± 159.21 0.749
CRP, mg/L 14.59 ± 17.47 20.78 ± 27.09 0.002
Cell-mediated immunity, %
CD3+ cells 64.70 ± 10.39 63.82 ± 11.11 0.330
CD3 + CD4+ cells 35.70 ± 9.01 35.39 ± 8.99 0.682
CD3 + CD8+ cells 25.80 ± 7.62 25.21 ± 8.06 0.365
CD3 − CD19+ cells 19.28 ± 8.63 19.18 ± 9.46 0.888
CD3 − CD(16+ 56+)+ natural killer cells 12.01 ± 6.91 12.55 ± 7.19 0.372
CD4+/CD8+ 1.52 ± 0.66 1.55 ± 0.71 0.584
Humoral immunity, g/L
IgA 1.07 ± 0.68 1.05 ± 0.68 0.736
IgG 7.85 ± 3.39 8.56 ± 3.12 0.008
IgM 2.19 ± 2.39 1.88 ± 1.93 0.084
Log(MP DNA) 5.10 ± 1.33 5.26 ± 1.40 0.132
  1. MPP, Mycoplasma pneumoniae pneumonia; WBC, white blood cells; LDH, L-lactate dehydrogenase; CRP, C-reactive protein; CD, cluster of differentiation; Ig, immunoglobulin; MP, Mycoplasma pneumoniae. Data are presented as mean ± standard deviation or number (percentage).