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Table 5 Floor and ceiling effects of the OSIS scoring system

From: The Oxford Shoulder Instability Score; validation in Dutch and first-time assessment of its smallest detectable change

Scoring system Absolute floor Absolute ceiling SDC SDC-range from % of patients scoring within SDC range
     Floor Ceiling Floor Ceiling
New (48–0)a No No 9.0 48–39 9–0 12 % 4 %
  1. From left to right, the new scoring system with the ranges and the absolute floor and ceiling scores are presented. The smallest detectable change (SDC) and the percentage of scores that fell within the SDC-range for both extremes
  2. aRanges reflect least impaired to most impaired function