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. 2021 May 17;3(4):e1025–e1029. doi: 10.1016/j.asmr.2021.03.007

Table 4.

PRO Measure Floor and Ceiling Effects

PRO Measure Floor Effects Ceiling Effects
PROMIS Mobility 4 (0.4%) 41 (3.6%)
PROMIS PI 54 (4.9%) 0 (0.0%)
IKDC 0 (0.0%) 0 (0.0%)
SANE 121 (10.8%) 12 (1.1%)
MARX 68 (6.0%) 331 (29.4%)

IKDC, International Knee Documentation Committee Score; MARX, Marx Knee Activity Rating Scale; PRO, Patient reported outcome; PROMIS Mobility, PROMIS Mobility Computer Adaptive Test; PROMIS PI, PROMIS Pain Interference Computer Adaptive Test; SANE, Single Assessment Numeric Evaluation.