The relationship between body mass index and hospitalisation rates, days in hospital and costs: findings from a large prospective linked data study.

ABSTRACT:

Background

Internationally there is limited empirical evidence on the impact of overweight and obesity on health service use and costs. We estimate the burden of hospitalisation-admissions, days and costs-associated with above-normal BMI.

Methods

Population-based prospective cohort study involving 224,254 adults aged ≥45y in Australia (45 and Up Study). Baseline questionnaire data (2006-2009) were linked to hospitalisation and death records (median follow-up 3.42y) and hospital cost data. The relationships between BMI and hospital admissions and days were modelled using zero-inflated negative binomial regression; generalised gamma models were used to model costs. Analyses were stratified by sex and age (45-64, 65-79, ≥80y), and adjusted for age, area of residence, education,

SUBMITTER: Korda RJ 

PROVIDER: S-EPMC4349828 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature