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Table 1 Basic information on studies included in the Global PAP Pooled Analysis

From: Phenotypic heterogeneity in mortality and prognosis of pulmonary alveolar proteinosis: a large-scale, global pooled analysis of individual-level data

Variable

Study (n)

Total (n)

295

Patients (n)

 N > 50

13

 N = 50–10

40

 N < 10

242

Area

 Asia

146

 Europe

64

 America

68

 Oceania

6

 Others

11

Year

 2011–2021

179

 2001–2010

105

 —2000

11

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Orphanet Journal of Rare Diseases

ISSN: 1750-1172