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|a pubmed25n0590.xml
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|a (DE-627)NLM177015004
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|a (NLM)18211755
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|a DE-627
|b ger
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|e rakwb
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|a chi
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|a Ai, Tao
|e verfasserin
|4 aut
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|a Determination of the lung function by impulse oscillometry in 549 healthy children in Chengdu area
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 22.12.2010
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|a Date Revised 07.06.2016
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|a published: Print
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|a Citation Status MEDLINE
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|a OBJECTIVE: Impulse oscillometry (IOS) is a new method for determination of breathing mechanics, which features convenient operation, good repeatability and wider range analysis. As there is no standardized normal value in China at present, this study will provide a normal value of lung function determination by impulse oscillometry for children in Chengdu area
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|a METHOD: Totally 549 children were chosen at random from Chengdu area, with 292 boys and 257 girls who were 4 to 14 years old. The subjects were assigned into 10 age groups according to their chronological age with one year difference between every two adjacent groups. The respiratory total impedance (Zrs), viscosity resistance (Rrs) and elastic resistance (Xrs) at various oscillation frequency were measured by the Master Screen IOS which was manufactured by German Jaeger Company. The measured data were treated with the linear stepwise multiple regression, and established the prediction equation. At the same time, paired comparison was carried out with the measured data and equation obtained from this study, Lechtenboerger equation and prediction equation obtained from Guangzhou area
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|a RESULT: The total impedance and airway resistance were negatively correlated with the children's height and age. Zrs (male) = -0.756 + 189.586/height, r = -0.782, P < 0.001; Zrs (female) = -0.497 + 152.468/height, r = -0.726, P < 0.001. Rrs became the same in trend; while Xrs were proportional to the height, e.g. the values increased as the height increased. The difference of the airway resistance (R(5)-R(20)) was negatively correlated with the children's height: R(5)-R(20) (male) = 0.601 - 0.0034 x height, r = -0.677, P < 0.001; R(5)-R(20) (female) = 0.549 - 0.0031 x height, r = -0.658, P < 0.001. Among the relationships with many impulse oscillometry parameters, height ranked at first place; age at second. The multiple regression equation of IOS primary index was established. Both the measured data and the correlation coefficient of the study obtained equation were greater than the coefficient correlation of the Lechtenboerger equation, but had no significant difference compared with that of prediction equation in Guangzhou area
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|a CONCLUSION: The normal value in impulse oscillometry in children in Chengdu area is different from the predicted parameters in other countries. The equation obtained from this study seems to be more suitable for the children in its local area. It is recommended to apply the predicted value from the corresponding population in the determination of the lung function by impulse oscillometry
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|a English Abstract
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|a Journal Article
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|a Luo, Rong-Hua
|e verfasserin
|4 aut
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|a Wang, Ci-Lin
|e verfasserin
|4 aut
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|a Yang, Ya-Jing
|e verfasserin
|4 aut
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|a Bao, Yi-Feng
|e verfasserin
|4 aut
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|a Liao, Hui-Ling
|e verfasserin
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|a Lu, Zheng-Rong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Zhonghua er ke za zhi = Chinese journal of pediatrics
|d 1960
|g 45(2007), 10 vom: 23. Okt., Seite 742-5
|w (DE-627)NLM136249191
|x 0578-1310
|7 nnas
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| 773 |
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|g volume:45
|g year:2007
|g number:10
|g day:23
|g month:10
|g pages:742-5
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|d 45
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|h 742-5
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