Table 1.

Patient-reported outcome measures

Outcome measure	Scale	Response
WOMAC pain subscale	0 to 20	Lower score indicates less pain
UCLA Activity Score	0 to 10	Higher score indicates higher activity
Modified Harris hip score (pain, function, and activity sections)	0 to 91	Higher score indicates better function
HOOS total score	0 to 100	Higher score indicates better function

HOOS = Hip disability and Osteoarthritis Outcome Score.