A New Scale to Assess the Severity and Prognosis of Pulmonary Alveolar Proteinosis

Table 7

Relationships between SPSP or DSS and other indexes.

Characteristic	SPSP		DSS
		value		value
PaO2, mmHg	0.778	<0.001	0.799	<0.001
HRCT score	0.846	<0.001	0.527	<0.001
FVC, % predicted	0.575	<0.001	0.332	0.001
FEV1, % predicted	0.557	<0.001	0.329	0.001
DLCO, % predicted	0.794	<0.001	0.513	<0.001

Data are presented as (%) or mean ± SD unless otherwise stated. DLCO: single-breath diffusing capacity of carbon monoxide; DSS: disease severity score; FEV₁: forced expiratory volume in 1 second; FVC: forced vital capacity; HRCT: high resolution computed tomography; PaO₂: arterial partial pressure of oxygen; PAP: Pulmonary Alveolar Proteinosis; SPSP: severity and prognosis score of PAP.