Table 1.

Definition of the initial response to treatment

		Evaluation of pulmonary function testa
		Improved	Stable	Deteriorated
Evaluation of images	Improved	Improved	Improved	Deteriorated
	Stable	Improved	Stable	Deteriorated
	Deteriorated	Improved	Deteriorated	Deteriorated

^a“Improved” meant at least 10% increase in forced vital capacity % predicted (%FVC) or at least 15% increase in diffusing capacity of the lung for carbon monoxide % predicted (%DL_CO). Stable was defined as within 10% change of %FVC and within 15% change of %DL_CO. “Deteriorated” meant over 10% decrease in %FVC or over 15% decrease in %DL_CO.