|
KMID : 0381319970360010013
|
|
Korean Journal of Occupational Health
1997 Volume.36 No. 1 p.13 ~ p.21
|
|
|
The Predicted Normal Values of Maximal Midexpiratory Flow in Korean Male Adults
|
|
Moon Tae-Suck
Koo Jung-Wan
Park Yong-Sang
Chung Chee-Kyung
|
|
|
Abstract
|
|
|
Maximal midexpiratory flow (MMF) was measured on 1280 healthy male adults using Vitalograph in standing position, in order to study the normal standard in the form of prediction equation, its variability and its relation to the other ventilatory measurements. The single and multiple regression analysis of MMF with age and several anthropometric measurements were performed to determine the most important factors which predicted normal value.
The results were as follows:
1. MMF was significantly correlated with anthropometric measurements, of which the highest correlations was with age(r=-0.313) and followed by height (r=0.217) but the correlations with weight and body surface area were very low.
2. The prediction equation of MMF (1/sec) on age and height was 0.027 height(cm)-0.034 age(yrs)
+0.761 with coefficient of determination(R²)of 0.125 and mean square of error of 0.820 1/sec.
3. There was no improvement of interindividual variability (coefficient of variation) for MMF when the flow was corrected to forced vital capacity (FVC).
4. The lower limits of normal (95% confidence interval) for MMF was 67.0% of the predicted.
5. MMF was significantly correlated with FEV1%(r=0.715), FEV1(r=0.601) and FVC(r=0.363). The prediction equation for MMF(1/sec) versus age and FEV1% was 0.157FEV1%(%)-0.013 age(yrs)-8.589
with mean square of error of 0.606 1/sec.
|
|
|
KEYWORD
|
|
|
Predicted normal MMF, Korean male adults, Ventilatory function test
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|