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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.