Part I: Measures of Disease Frequency In 2009, President Obama launched a nationwide initiative to end homelessness in the U.S. by 2020. The homeless are a vulnerable population with limited access t

Part I: Measures of Disease FrequencyIn 2009, President Obama launched a nationwide initiative to end homelessness in the U.S. by 2020. The homeless are a vulnerable population with limited access to health care and poor health outcomes. In order to allocate sufficient federal and local resources to eliminate homelessness, U.S. cities conduct an annual survey to estimate the […]