Overall health status (categorized as excellent, very good, good, and fair or poor) was measured using a general health item from a brief health-related quality of life instrument (the SF-12) [ 26].
[ 48]." The responses were categorized as, very bad and bad = 1, fair health = 2, and good and very good = 3.
All adverse events were categorized as mild.
Functional evaluation was based on the Enneking functional evaluation form [7]. Results were categorized as excellent, good, fair, or poor based on the specific numeric range assigned in the scoring system.
Clinical results were categorized as excellent, good, fair, or poor.
All images were first examined for quality and categorized as excellent, good, fair, borderline and ungradeable.
All images will first be examined for quality and categorized as excellent, good, fair, borderline and ungradeable.
Self-rated health was dichotomized such that "excellent," "very good," and "good" responses were categorized as "good," and "fair," "poor," and "very poor" responses were categorized as "poor".
Sleep quality was collected through questionnaires by interviewing patients before the procedure by a special staff, which was categorized as excellent or good, fair or bad as described previously [ 15, 21].
