Index of Middlesex Parish Records without record type listed
I have a batch of Middlesex Parish records from 1821 that is a yearly index of names beginning with the letter "P". There is no indication of what type of record it is (I checked all of the reference pages). The record just lists a name and a date. As it is an index of names, the date recorded could be for birth, marriage, or death. How can I proceed without knowing which one?