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Int. J. Environ. Res. Public Health 2014, 11(10), 10362-10365; https://doi.org/10.3390/ijerph111010362

Correction
Correction: Soppa, V.J., et al. Respiratory Effects of Fine and Ultrafine Particles from Indoor Sources—A Randomized Sham-Controlled Exposure Study of Healthy Volunteers Int. J. Environ. Res. Public Health 2014, 11, 6871–6889
1
IUF - Leibniz Research Institute for Environmental Medicine, Auf'm Hennekamp 50, 40225 Düsseldorf, Germany
2
Air Quality & Sustainable Nanotechnology Unit, IUTA e.V., Bliersheimer Straße 58–60, 47229 Duisburg, Germany
3
Center for Nanointegration (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany
4
Medical Faculty, Heinrich-Heine-University of Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
*
Author to whom correspondence should be addressed.
External Editor: Paul B. Tchounwou
Received: 29 August 2014 / Accepted: 1 September 2014 / Published: 7 October 2014
The authors wish to make the following amendments to their paper published in International Journal of Environmental Research and Public Health [1]:
  • Page 6880, Table 3: “FEV1/FVC[%]” should read “FEV1/FVC”.
  • Page 6880, Table 4: “10,000 Number/cm3 (PNC)” should read “10,000 /cm3 (PNC)”, “FEV1/FVC (%); Percentage Point * 1000” should read “FEV1/FVC × 1000”. The items for FEV1 for Toasting Bread and Frying Sausages were missing. The correct Table 4 should be:
Table 4. Mean effect estimates and 95% Confidence Interval (CI) for changes (difference) associated with an increase in particulate metrics post 4 h and 24 h post exposure and for different exposure scenarios for PMC, PSC and PNC. Changes refer to an increase of 10 µg/m3 (PMC), 100 µm2/cm3 (PSC) and 10,000 /cm3 (PNC).
Table 4. Mean effect estimates and 95% Confidence Interval (CI) for changes (difference) associated with an increase in particulate metrics post 4 h and 24 h post exposure and for different exposure scenarios for PMC, PSC and PNC. Changes refer to an increase of 10 µg/m3 (PMC), 100 µm2/cm3 (PSC) and 10,000 /cm3 (PNC).
Lung function measureExposure scenarioPMCPSCPNC
PM10PM2.5PM1<100 nm
Mean (95%-CI)Mean (95%-CI)Mean (95%-CI)Mean (95%-CI)Mean (95%-CI)
Post 4 hPost 24 hPost 4 hPost 24 hPost 4 hPost 24 hPost 4 hPost 24 hPost 4 hPost 24 h
FEV1 (mL)Candle burning
crude model *7 (−1; 15)5 (−3; 13)8 (0; 16)5 (−3; 13)8 (0; 16)5 (−3; 13)2 (0; 3)1 (−1; 2)0 (0; 0)0 (0; 0)
full model *−18 (−40; 4)−19 (−41; 3)−19 (−43; 5)−20 (−44; 4)−22 (−47; 3)−23 (−48; 2)−13 (−20; −6)−13 (−20; −6)−1 (−2; 1)−1 (−2; 1)
Toasting bread
crude model0 (−2; 2)0 (−2; 2)4 (−2; 10)2 (−4; 8)11 (1; 21)10 (0; 20)3 (1; 5)2 (0; 4)1 (0; 1)0 (0; 1)
full model0 (−2; 2)0 (−8; 8)1 (−5; 7)−2 (−16; 12)−6 (−26; 14)−7 (−27; 13)−2 (−10; 5)−3 (−10; 5)1 (-2; 4)1 (−2; 4)
Frying sausages
crude model0 (−2; 2)1 (−1; 3)0 (−4; 4)1 (−3; 5)1 (−3; 5)2 (−2; 6)1 (−2; 3)0 (−2; 3)0 (−1; 2)0 (−1; 2)
full model−3 (−7; 1)−2 (−8; 4)−6 (−12; 0)−5 (−13; 3)−5 (−13; 3)−3 (−11; 5)−1 (−6; 4)0 (−5; 5)0 (−5; 5)0 (−5; 6)
FVC (mL)Candle burning
crude model8 (−2; 18) 7 (−3; 17)9 (−1; 19)8 (−2; 18)9 (−1; 19)8 (−2; 18)2 (0; 4) 0 (−2; 2)0 (0; 0)0 (0; 0)
full model−13 (−38; 12)−12 (−39; 15)−12 (−39; 15)−11 (−38; 16)−13 (−44; 18)−12 (−43; 19)−9 (−18; −1)−10 (−18; −1)−1 (−3; 0)−1 (−3; 0)
Toasting bread
crude model0 (−2; 2) −1 (−3; 1)4 (−2; 10)1 (−5; 7)14 (4; 24)14 (4; 24)3 (1; 5)2 (0; 5)1 (0; 1)0 (0; 1)
full model0 (−2; 2)−2 (−10; 6)1 (−7; 9)−2 (−16; 12)0 (−22; 22)0 (−21; 19)1 (−7; 9)1 (−7; 8)1 (−2; 4)1 (−2; 4)
Frying sausages
crude model0 (−2; 2)0 (−2; 2)0 (−4; 4)0 (−4; 4)1 (−3; 5)0 (−4; 4)0 (−2; 3)−1 (−3; 1)0 (−1; 2)−1 (−2; 1)
full model2 (−2; 6)1 (−3; 5)3 (−3; 9)2 (−4; 8)5 (−1; 11)4 (−4; 12)3 (−1; 7)2 (−3; 7)4 (−1; 8)3 (−2; 8)
FEV1/FVC × 1000Candle burning
crude model0 (−2; 2)0 (−2; 2)0 (−2; 2)0 (−2; 2)0 (−2; 2)0 (−2; 2)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)
full model−2 (−6; 2)−3 (−7; 1)−3 (−7; 1)−3 (−7; 1)−3 (−7; 1)−4 (−8; 0)−1 (−2; 0)1 (−2; 0)0 (0; 0)0 (0; 0)
Toasting bread
crude model0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)0 (−2; 2)0 (−2; 2)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)
full model0 (0; 0)0 (0; 0)0 (0; 0)0 (−2; 2)−1 (−3; 1)−1 (−3; 1)−1 (−2; 0)−1 (−2; 0)0 (0; 0)0 (0; 0)
Frying sausages
crude model0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 0)0 (0; 1)0 (0; 0)0 (0; 0)
full model−1 (−1; −1)−1 (−1; −1)−2 (−4; 0)−2 (−4; 0)−2 (−4; 0)−2 (−4; 0)−1 (−2; 0)0 (−1; 0)−1 (−2; 0)−1 (−1; 0)
Notes: * adjusted for age, height, sex, temperature, humidity, travel time and means of transportation. Abbreviations: FEV1: forced expiratory volume at 1 s, FVC: forced vital capacity, MEF25%–75%: averaged forced expiratory flow between the full expiration of 25% and 75% of the total FVC, CI: confidence interval; marked in bold: effect estimates where CI did not include the null effect. PMC: particle mass concentration; PSC: particle surface concentration; PNC: particle number concentration; LDSA: lung deposited surface area.
The authors would like to apologize for any inconvenience caused to readers by these changes.

References

  1. Soppa, V.J.; Schins, R.P.F.; Hennig, F.; Hellack, B.; Quass, U.; Kaminski, H.; Kuhlbusch, T.A.J.; Hoffmann, B.; Weinmayr, G. Respiratory Effects of fine and ultrafine particles from indoor sources—A randomized sham-controlled exposure study of healthy volunteers. Int. J. Environ. Res. Public Health 2014, 11, 6871–6889. [Google Scholar]
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