How to differentiate between new hire and rehire in the atoms new hire Feed

Summary:

I am using the atoms feed for newhire (hcmRestApi/atomservlet/employee/newhire) . When I rehire an ex-employee , it gives me very similar RESPONSE BODY as a new hire. How do I differentiate by parsing the RESPONSE if the employee is a new hire or a rehire.

Content (please ensure you mask any confidential information):

Example

 <title type="text">            <![CDATA[XX Hired]]>        </title>        <summary type="text">            <![CDATA[Employee Period of Service Created]]>

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Code Snippet (add any code snippets that support your topic, if applicable):