Impairments and activity limitations are decrements of functioning capacity, and so are elements of a person's health state.
This finding was supported by a study conducted in Klang Valley, where significant associations were found between indoor concentration level PM2.5 and the decrements of lung function among children in urban area [ 11].
It has been suggested that the lung may also be a target organ of diabetes 13, and decrements of lung function in Type 2 diabetes have been observed independently of smoking and obesity 14.
Although the results of the present study showed decrements of pulmonary function in the HD patient group, it is important to note that such impairments were not present in all patients.
However, our lung function data indicate that PM2.5 of indoor origin might be more potent per unit mass in resulting in decrements of lung functions, although the results across functional tests were not consistent.
Our lung function results show that exposure to particles generated indoors, but not outdoors, was associated with decrements of lung functions except for MEF.
According to the array of possible decrements, the decrements of exponential functions (k i ) are discrete in nature.
6 Exacerbations lead to emergency and hospital care 7 and each exacerbation leaves a permanent decrement of lung function.
However, we did not find a significant relationship between Fe content in PM10 and decrement of lung function.
Subsequent events may include epithelial damage, increased permeability, and an inflammatory response leading to the decrement of lung function (Bergamaschi et al. 2001).
