Modelling zero-truncated overdispersed antenatal health care count data of women in Bangladesh


Autoři: Zakir Hossain aff001;  Rozina Akter aff001;  Nasrin Sultana aff002;  Enamul Kabir aff003
Působiště autorů: Department of Statistics, University of Dhaka, Dhaka, Bangladesh aff001;  Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, United States of America aff002;  School of Sciences, University of Southern Queensland, Toowoomba, Australia aff003
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article
doi: 10.1371/journal.pone.0227824

Souhrn

Overdispersion in count data analysis is very common in many practical fields of health sciences. Ignorance of the presence of overdispersion in such data analysis may cause misleading inferences and thus lead to incorrect interpretations of the results. Researchers should account for the consequences of overdispersion and need to select the correct choice of models for the analysis of such data. In this paper, Generalized Linear Models (GLMs) are applied in modelling and analysis of antenatal care (ANC) count data extracted from the Bangladesh Demographic and Health Survey (BDHS) 2014. Pearson chi-square and different score tests are used to investigate the effect of overdispersion in the analysis. Overdispersion is found to be significant in the antenatal health care count data and so appropriate modelling is used to produce valid inferences for the regression parameters. The zero-truncated negative binomial regression (0-NBR) is found to be the best choice for analysing such data while excluding zero counts. Study findings reveal that place of residence, order of birth, exposure to mass media, wealth index and education of mother have significant impacts on the ANC status of women during pregnancy in Bangladesh.

Klíčová slova:

Antenatal care – Bangladesh – Health care providers – Labor and delivery – Obstetrics and gynecology – Pregnancy – Pregnancy complications – Statistical dispersion


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