Introduction: Statistical methods such as Principal Component Analysis (PCA) and Factor
Analysis (FA) are increasingly popular in Nutritional Epidemiology studies. However …

Physical activity (PA) guidelines recommend that PA be accumulated in bouts of 10 minutes
or more in duration. Recently, researchers have sought to better understand how …

This article is motivated by the challenge of analysing an agricultural field experiment with
observations that are positive on a continuous scale or zero. Such data can be analysed …

Semi-continuous data characterized by an excessive proportion of zeros and right-skewed
continuous positive values appear frequently in medical research. One example would be …

Measurement error in exposure variables is a serious impediment in epidemiological
studies that relate exposures to health outcomes. In nutritional studies, interest could be in …

This study aimed to estimate the distribution of usual intakes in protein, sodium, potassium,
and calcium by age group and assessed whether proportions of deficiencies/excesses of …

Beta rectangular regression models to longitudinal data Page 1 Brazilian Journal of Probability
and Statistics 2021, Vol. 35, No. 4, 851–874 https://doi.org/10.1214/21-BJPS511 © Brazilian …

Dietary questionnaires are prone to measurement error, which bias the perceived
association between dietary intake and risk of disease. Short‐term measurements are …

In this paper, a new class of semi-continuous distributions called zero-adjusted log-
symmetric is introduced and studied. Some properties and parameters estimation by …

The two‐part model and the Tweedie model are two essential methods to analyze the
positive continuous and zero‐augmented responses. Compared with other continuous zero …