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Means and SEM for question F: Do you have instability with, or does shopping in a supermarket bother you (rapid changes in products on the shelves)? Question_F_1: 3 months before surgery, Question_F_2: 3 weeks after surgery, Question_F_3: 3 months after surgery, and Question_F_4: 1 year after surgery. ANOVA 2-way (time × group) interaction effect p value < 0.05.
