Table 1 Inclusion and exclusion criteria.

From: A new dynamic nomogram for predicting the risk of severe Mycoplasma pneumoniae pneumonia in children

Inclusion criteria

The patients were younger than 18 years old

The patients were diagnosed with MPP according to the Guidelines for Diagnosis and Treatment of Mycoplasma Pneumonae Pneumonia in Children (2023 Edition). Meet the following three points:

 With fever, cough, wheezing, dyspnea and other respiratory manifestations;

 Chest imaging examinations were consistent with pneumonia;

 Compliance with ≥ 1 item:

  Single serum MP antibody titer ≥ 1:160 (PA method) or double serum MP antibody titers increased by 4 times or more;

  Positive MP-DNA or MP-RNA

The clinical data of the patients were complete

Obtain the informed consent of the children's parents

Exclusion Criteria

The patients had recently received immunotherapy or hormone therapy

Admission during the MPP recovery period (patients with a disease course of more than 4 weeks, stable temperature for more than 1 week, improvement of chest imaging)