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Table 1 Three-component score system for assessing tidal lung function

From: Epidemiology and associations with climatic conditions of Mycoplasma pneumoniae and Chlamydophila pneumoniae infections among Chinese children hospitalized with acute respiratory infections

Parameters Scores
0 1 2 3
PTEF/t-PTEF(mL/s2) <3 3-6 7-10 >10
25TEF/PTEF (%) >80 60-80 40-60 <40
t-PTEF/t-E (%) >30 20-30 10-20 <10
  1. The score for 5 levels of tidal lung function. Normal: 0, Mild: <3, moderate: 3–5, Severe: 6–7, Extremely severe: 8–9. PTEF peak tidal expiratory flow, t-PTEF time to peak tidal expiratory flow, 25TEF tidal expiratory flow at 25% of tidal volume remaining, t-E, expiratory time.