12/13/2022 0 Comments Point measure![]() PROMIS Physical Function, Pain Interference, Sleep Disturbance, and Depression (Nagaraja et al 2018) in rheumatic conditions.PROMIS Pain Interference and Fatigue (Bingham et al 2021) in rheumatoid arthritis.PROMIS Physical Function, Cognitive Function, and Sleep Disturbance (Rothrock et al 2019) in cancer. ![]() PROMIS Pain Interference, Fatigue, Anxiety, and Depression (Cella et al 2014) in cancer.This method, called Bookmarking, has been used to establish thresholds for severity levels (e.g., no problems, mild problems, moderate problems, severe problems) in multiple patient populations. Researchers have adopted a method applied in educational testing to identify thresholds for levels of academic outcomes (e.g., math proficiency levels). See Hays, Spritzer, Thompson & Cella (2015) for more information. For example, the mean Global Mental score for “Excellent” was 61 and the mean score for “Very Good” was 51. The cut points for PROMIS Adult Global Physical and Mental score categories of excellent, very good, good, fair, and poor were constructed by 1) creating groups based upon responses to Global01 “In general, would you say your health is excellent, very good, good, fair, or poor?”, 2) calculating mean scores for each group, and 3) identifying the midpoint between two adjacent means. This was evaluated by looking at the percentage of participants from large scale calibration testing that would then fit into each category. They started by reviewing whether 0.5, 1.0, and 2.0 standard deviations were reasonable thresholds to use across domains. PROMIS scientists constructed the interpretation of PROMIS scores graph for Profile domains (adult Anxiety, Depression, Fatigue, Pain Interference, Physical Function, Sleep Disturbance, and Ability to Participate in Social Roles & Activities) by reviewing the data collected in the large scale calibration testing data ( Cella et al 2010, Rothrock et al 2010). ![]()
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