A research is made about the relationship between the normal reference value of 15549 cases of Chinese adult men’s diffusion capacity for carbon monoxide of lung (DLCO) and altitude, annual sunshine duration, annual mean air temperature, annual range of air temperature, annual mean relative humidity, annual precipitation, and annual mean cloud cover in China, which are determined by the way of single breath method, using the methods of correlation analysis. It is found that altitude is the main factor affecting the reference value of Chinese adult men’s DLCO. Applying the method of trend surface model, one model is given out. Applying the spatial analysis of GIS, a distribution map about Chinese adult men’s DLCO can be made. If geographical values are obtained in some areas, the reference value of Chinese adult men’s DLCO of those areas can be reckoned using trend surface model, the distribution map also shows the anywhere of normal reference value of Chinese adult men’s DLCO.
HE Jin-wei, GE Miao, CUI Zhi-yuan, WANG Xin, CAO Li-xia, YAN Yan-chun, WANG Zhi-kui
. Geography Distribution Rule of Chinese Adult Men’s Diffusion Capacity for Carbon Monoxide of Lung Based on Trend Surface Model[J]. SCIENTIA GEOGRAPHICA SINICA, 2009
, 29(4)
: 573
-576
.
DOI: 10.13249/j.cnki.sgs.2009.04.573
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