Raising health awareness across the population is a key means of fostering better social and health outcomes. It helps raise insight into the need of improving health statuses and well-being, reducing health inequalities and strengthening the public health sectors through direct actions of governments. Public stats increase awareness by granting access to key measures, evidence and statistics within the health sector. Other factors why statistics should be used include providing essential health and social data to the public, and it can be used as a tool for policy formulation.

A census gathers information from every entity in a population. If you're seeking to improve one specific hospital, you're better off gathering data from the patients of that hospital rather than patients from around the country staying in different hospitals. The census wouldn't offer any valuable localized information to the researcher in this case. Furthermore, with surveys, everyone is invited. For annual measurements, such as customer satisfaction survey, everyone can provide feedback given a small sample size and not be too expensive to administer and collect.

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