Time's up. descriptive epidemiology of multi-morbidity and time spent on health related activity by older Australians: a time use survey.

Respondents from the COPD and Diabetes sub-samples had on average more co-morbid conditions than the NSA sub-sample (mean number of chronic conditions is 3.7 for the COPD sub-sample, 3.4 for the Diabetes sub-sample and 2.0 for the NSA sub-sample, with COPD/Diabetes difference significant (p = 0.010) and other differences highly significant (p<0.001)).

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The study identified a clear trend of increased time use associated with increased number of chronic conditions.

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