/etc/shadow - Field definitions

QNX’s /etc/shadow file has 5 fields. The first two are user-id and encrypted
password. The next three in the Linux/Unix world are the number of days
(based on 1970 or some such) since password was changed, the minimum number
of days required between password changes and the maximum number of days the
password is valid.

What are the last three fields in QNX?