RAND-36 health survey
The RAND-36 consists of 36 items grouped into eight multi-item scales:
physical functioning (PF),
role-functioning/physical (RP), pain (P), general health (GH),
energy/fatigue (EF), social functioning (SF), role-functioning/emotional
(RE), and emotional well-being (EW). Scale scores are summed and
transformed into scales ranging from 0 (worst possible health state) to
100 (best possible state)12.