Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil

ABSTRACT OBJECTIVE To compare two methodological approaches: the multinomial model and the zero-inflated gamma model, evaluating the factors associated with the practice and amount of time spent on leisure time physical activity. METHODS Data collected from 14,823 baseline participants in the Longitudinal Study of Adult Health (ELSA-Brasil – Estudo Longitudinal de Saúde do Adulto ) have been analysed. Regular leisure time physical activity has been measured using the leisure time physical activity module of the International Physical Activity Questionnaire. The explanatory variables considered were gender, age, education level, and annual per capita family income. RESULTS The main advantage of the zero-inflated gamma model over the multinomial model is that it estimates mean time (minutes per week) spent on leisure time physical activity. For example, on average, men spent 28 minutes/week longer on leisure time physical activity than women did. The most sedentary groups were young women with low education level and income CONCLUSIONS The zero-inflated gamma model, which is rarely used in epidemiological studies, can give more appropriate answers in several situations. In our case, we have obtained important information on the main determinants of the duration of leisure time physical activity. This information can help guide efforts towards the most vulnerable groups since physical inactivity is associated with different diseases and even premature death.

Saved in:
Bibliographic Details
Main Authors: Nobre,Aline Araújo, Carvalho,Marilia Sá, Griep,Rosane Härter, Fonseca,Maria de Jesus Mendes da, Melo,Enirtes Caetano Prates, Santos,Itamar de Souza, Chor,Dora
Format: Digital revista
Language:English
Published: Faculdade de Saúde Pública da Universidade de São Paulo 2017
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102017000100266
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:scielo:S0034-89102017000100266
record_format ojs
spelling oai:scielo:S0034-891020170001002662017-08-15Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-BrasilNobre,Aline AraújoCarvalho,Marilia SáGriep,Rosane HärterFonseca,Maria de Jesus Mendes daMelo,Enirtes Caetano PratesSantos,Itamar de SouzaChor,Dora Motor Activity Leisure Activities Regression Analysis Models, Statistical ABSTRACT OBJECTIVE To compare two methodological approaches: the multinomial model and the zero-inflated gamma model, evaluating the factors associated with the practice and amount of time spent on leisure time physical activity. METHODS Data collected from 14,823 baseline participants in the Longitudinal Study of Adult Health (ELSA-Brasil – Estudo Longitudinal de Saúde do Adulto ) have been analysed. Regular leisure time physical activity has been measured using the leisure time physical activity module of the International Physical Activity Questionnaire. The explanatory variables considered were gender, age, education level, and annual per capita family income. RESULTS The main advantage of the zero-inflated gamma model over the multinomial model is that it estimates mean time (minutes per week) spent on leisure time physical activity. For example, on average, men spent 28 minutes/week longer on leisure time physical activity than women did. The most sedentary groups were young women with low education level and income CONCLUSIONS The zero-inflated gamma model, which is rarely used in epidemiological studies, can give more appropriate answers in several situations. In our case, we have obtained important information on the main determinants of the duration of leisure time physical activity. This information can help guide efforts towards the most vulnerable groups since physical inactivity is associated with different diseases and even premature death.info:eu-repo/semantics/openAccessFaculdade de Saúde Pública da Universidade de São PauloRevista de Saúde Pública v.51 20172017-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102017000100266en10.11606/s1518-8787.2017051006882
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Nobre,Aline Araújo
Carvalho,Marilia Sá
Griep,Rosane Härter
Fonseca,Maria de Jesus Mendes da
Melo,Enirtes Caetano Prates
Santos,Itamar de Souza
Chor,Dora
spellingShingle Nobre,Aline Araújo
Carvalho,Marilia Sá
Griep,Rosane Härter
Fonseca,Maria de Jesus Mendes da
Melo,Enirtes Caetano Prates
Santos,Itamar de Souza
Chor,Dora
Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
author_facet Nobre,Aline Araújo
Carvalho,Marilia Sá
Griep,Rosane Härter
Fonseca,Maria de Jesus Mendes da
Melo,Enirtes Caetano Prates
Santos,Itamar de Souza
Chor,Dora
author_sort Nobre,Aline Araújo
title Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
title_short Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
title_full Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
title_fullStr Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
title_full_unstemmed Multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of ELSA-Brasil
title_sort multinomial model and zero-inflated gamma model to study time spent on leisure time physical activity: an example of elsa-brasil
description ABSTRACT OBJECTIVE To compare two methodological approaches: the multinomial model and the zero-inflated gamma model, evaluating the factors associated with the practice and amount of time spent on leisure time physical activity. METHODS Data collected from 14,823 baseline participants in the Longitudinal Study of Adult Health (ELSA-Brasil – Estudo Longitudinal de Saúde do Adulto ) have been analysed. Regular leisure time physical activity has been measured using the leisure time physical activity module of the International Physical Activity Questionnaire. The explanatory variables considered were gender, age, education level, and annual per capita family income. RESULTS The main advantage of the zero-inflated gamma model over the multinomial model is that it estimates mean time (minutes per week) spent on leisure time physical activity. For example, on average, men spent 28 minutes/week longer on leisure time physical activity than women did. The most sedentary groups were young women with low education level and income CONCLUSIONS The zero-inflated gamma model, which is rarely used in epidemiological studies, can give more appropriate answers in several situations. In our case, we have obtained important information on the main determinants of the duration of leisure time physical activity. This information can help guide efforts towards the most vulnerable groups since physical inactivity is associated with different diseases and even premature death.
publisher Faculdade de Saúde Pública da Universidade de São Paulo
publishDate 2017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102017000100266
work_keys_str_mv AT nobrealinearaujo multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT carvalhomariliasa multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT grieprosaneharter multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT fonsecamariadejesusmendesda multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT meloenirtescaetanoprates multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT santositamardesouza multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
AT chordora multinomialmodelandzeroinflatedgammamodeltostudytimespentonleisuretimephysicalactivityanexampleofelsabrasil
_version_ 1756379412911095808