An Approach for Assessing the Distribution of Reporting Delay in Portuguese AIDS Data

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Oliveira, A (Autor) Outra; Rita Gaio (Autor) FCUP; Da Costa, JP (Autor) FCUP; reis, lp (Autor) REIT

Ata de Conferência Internacional

Título: NEW ADVANCES IN INFORMATION SYSTEMS AND TECHNOLOGIES, VOL 2

Páginas: 641-649

World Conference on Information Systems and Technologies (WorldCIST)

Recife, BRAZIL, MAR 22-24, 2016

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 1 Citação

Classificação Científica

FOS: Ciências exactas e naturais > Matemática

Outras Informações

ID Authenticus: P-00K-AJ6

DOI: 10.1007/978-3-319-31307-8_66

Abstract (EN): HIV/AIDS epidemic is an important public health problem. The burden of the epidemic is estimated from surveillance systems data. The collected information is incomplete, making the estimation a challenging task and the reported trends often biased. The most common incomplete-data problems, in this kind of data, are due to under diagnosis and reporting delays, mainly in the most recent years. This is a classical problem for imputation methodologies. In this paper we study the distribution of AIDS reporting delays through a mix approach, combining longitudinal K-means with the generalized least squares method. While the former identifies homogeneous delay patterns, the latter estimated longitudinal regression curves. We found that a 2-cluster structure is appropriated to accommodate the heterogeneity in reporting delay on HIV/AIDS data and that the corresponding estimated delay curves are almost stationary over time.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9