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Table 2 Floor and ceiling effects

From: Functional outcomes in ICU – what should we be using? - an observational study

Test Floor effect n/total n assessed (%) Ceiling effect n/total n assessed (%) Range of test scores at each time point
PFIT-s on awakening 6/66 (9.1%) 1/66 (1.5%) 0 to 10 out of 10
PFIT-s at ICU discharge 1/66 (1.5%) 7/66 (10.6%) 0 to 10 out of 10
FSS-ICU on awakening 2/66 (3.0%) 0/66 (0%) 0 to 33 out of 35
FSS-ICU at ICU discharge 0/66 (0%) 2/66 (3.0%) 2 to 35 out of 35
IMS on awakening 11/66 (16.7%) 0/66 (0%) 0 to 8 out of 10
IMS at ICU discharge 0/64 (0%) 3/64 (4.7%) 1 to 10 out of 10
SPPB on awakening 18/23 (82.6%) 0/23 (0%) 0 to 8 out of 12
SPPB at ICU discharge 13/23 (56.5%) 0/23 (0%) 0 to 11 out of 12
  1. FSS-ICU, Functional Status Score for the Intensive Care Unit; IMS, ICU mobility scale; n, number; PFIT-s, Physical Function in Intensive Care Test scored; SPPB, Short Physical Performance Battery.
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