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01.12.2018 | Correction | Ausgabe 1/2018 Open Access

Respiratory Research 1/2018

Correction to: Comparative analysis of COPD associated with tobacco smoking, biomass smoke exposure or both

Zeitschrift:
Respiratory Research > Ausgabe 1/2018
Autoren:
Jordi Olloquequi, Sergio Jaime, Viviana Parra, Elizabeth Cornejo-Córdova, Gonzalo Valdivia, Àlvar Agustí, Rafael O. Silva
Wichtige Hinweise
The original article can be found online at https://​doi.​org/​10.​1186/​s12931-018-0718-y

Correction

In the original publication [ 1] there is an error in the FEV1/FVC values found in Table 1. The correct version can be found in this Erratum.
Table 1
Demographic and clinical data
 
Control Subjects
n = 52
TS COPD
n = 49
BS COPD
n = 31
TS + BS COPD
n = 46
Sex, Male (%)/Female (%)
15(29) / 37(71)
35(71) / 14(29)
12(39) / 19(61)
26(63) / 20(37)
Age, years
70.34 ± 5.95
69.41 ± 8.69
72.29 ± 9.49
69.93 ± 7.19
Smoking history, pack-years
41.57 ± 25.62
55.46 ± 47.12
Biomass exposure, hour-years
340.90 ± 206.09
345.15 ± 193.16
Scolarship, years
13.21 ± 2.06
7.56 ± 4.25 a
5.20 ± 3.59 a, b
6.09 ± 3.93 a, b
BMI, kg/m 2
30.09 ± 5.54
27.67 ± 5.08 a
26.57 ± 3.06 a
27.35 ± 5.69 a
Exacerbations in the previous year
1.10 ± 1.37
0.58 ± 0.42
0.69 ± 1.29
FEV 1, % predicted
110.19 ± 17.46
56.88 ± 19.37 a, c
68.09 ± 32.30 a
53.79 ± 18.67 a, c
FEV 1/FVC, %
84.46 ± 4.24
54.25 ± 11.17 a
58.39 ± 8.62 a
53.53 ± 12.35 a, c
DL CO, % predicted
81.52 ± 21.21
66.60 ± 19.82 a
73.73 ± 17.16
61.22 ± 24.98 a, c
Oxygen Saturation, %
96.91 ± 1.36
92.65 ± 4.55 a
93.94 ± 4.04 a
90.52 ± 4.90 a, b, c
6 MW, meters
492.48 ± 78.51
355.96 ± 163.02 a
375.29 ± 143.75 a
344.09 ± 161.12 a
mMRC
2.38 ± 1.47
2.37 ± 1.16
2.67 ± 1.03
CAT
15.49 ± 8.21
14.84 ± 6.69
13.18 ± 6.69
BODE
2.88 ± 5.71
2.71 ± 6.35
3.87 ± 7.72
Data presented as mean ± standard deviation, unless otherwise indicated. Definition of abbreviations: BMI body-mass index, FEV 1 forced expiratory volume in 1 s, FVC forced vital capacity, DL CO carbon monoxide diffusing capacity, 6 MW 6 min walking test, mMRC modified Medical Research Council scale, CAT COPD assessment test, BODE Body-mass, airflow Obstruction, Dyspnea and Exercise index
aDifferent from control subjects ( p < 0.05, by ANOVA)
bDifferent from TS COPD ( p < 0.05, by ANOVA)
cDifferent from BS COPD ( p < 0.05, by ANOVA)
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://​creativecommons.​org/​licenses/​by/​4.​0/​), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://​creativecommons.​org/​publicdomain/​zero/​1.​0/​) applies to the data made available in this article, unless otherwise stated.
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