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Table 4 Effects of FA exposure and DE exposure on PEF as measured using a MWPFM and a SPIRARE spirometer

From: Effects of diesel exposure on lung function and inflammation biomarkers from airway and peripheral blood of healthy volunteers in a chamber study

 

Before exposure

15 min exposure

75 min exposure

135 min exposure

After exposure

Δ 15 min a

Δ 75 min a

Δ 135 min a

Δ after exosure a

FA exposure

         

PEF (L/min) from MWPFM

530±73

533±73

534±73

538±75

--*

3±25

4±26

8±31

--*

PEF (L/min) from spirometer

524±88

--*

--*

--*

531±90

--*

--*

--*

8±27

DE exposure

         

PEF (L/min) from MWPFM

537±74

531±75

528±78

534±81

--*

-6±22

-10±22 #

-4±18

--*

PEF (L/min) from spirometer

530±93

--*

--*

--*

527±89

--*

--*

--*

-3±24

  1. Values are mean ± standard deviation (SD).
  2. DE, diesel exhaust; FA, filtered air; PEF, peak expiratory flow; MWPFM, Mini-Wright Peak Flow Meter.
  3. aΔ 15 min = 15 min of exposure – before exposure; Δ 75 min = 75 min of exposure – before exposure; Δ 135 min = 135 min of exposure – before exposure; Δ after exposure = after exposure – before exposure.
  4. *No PEF was recorded. #P <0.017 for DE exposure vs. FA exposure.