I'm not sure exactly. I doubt sick calls are noted in PRIA records, however once offered employment I believe new employers are entitled to previous employers employees' records. I believe those records include training/recurrent results as well as on going attendance records.

Personally I don't think sick calls are the issue as much as being truthful and honest. If an applicant comes off as disingenuous or insincere the interviewers will likely be turned off.

Example, when asked if you've applied anywhere else don't lie and tell them no. It's highly unlikely that pilots will only send in one application to a specific company and hold out for the call. I know I didn't.