| RNEUSI | is the Registered Nurse Equivalent Units of Service Index (grand total minutes of activity indexed to reflect skill level salary differentials); |
| RNUR | is total Registered Nurse nursing minutes; |
| RNON | is total Registered Nurse nonnursing minutes; |
| LNUR | is total Licensed Practical Nurse nursing minutes; |
| LNON | is total Licensed Practical Nurse nonnursing minutes; |
| 0.786 | is the Licensed Practical Nurse skill level index (ratio of average labor cost per hour of Licensed Practical Nurses to average labor cost per hour of Registered Nurses); |
| ANUR | is total attendant nursing minutes; |
| ANON | is total attendant nonnursing minutes; |
| 0.722 | is the attendant skill level index (ratio of average labor cost per hour of attendants to average labor cost per hour of Registered Nurses). |