The average pain interference score was 50.1, and nearly one in five (17.8%) respondents reported experiencing >15 min of morning stiffness on a typical day in the past 2 weeks (Table 3).
The 235 individuals included in the current report did not differ significantly from the 83 individuals who were eligible but declined to enroll or did not complete all of the baseline measures in age, race, income, proportion living alone, average pain in the past week, average pain interference with activity in the past week, or average pain interference with enjoyment of life in the past week.
Mean pain interference score was 50.1 (SD = 11.1).
The differences in average pain, pain interference, and pain severity scores between the true acupuncture group and both control groups were also statistically significant.
In each case, there were significantly greater improvements in pain scores after treatment in the community setting compared with the hospital crossover setting for worst pain (P=0.021), average pain (P=0.003), and interference with general activity (P=0.001).
Raking by race/ethnicity, age, and stage generated weighted average PROMIS scores for pain interference, fatigue, anxiety, depression, sleep disturbance, physical function, ability to participate in social roles, and cognitive function.
Pain: Brief Pain Inventory (BPI) (overall score for pain interference and average pain intensity) [ 23] and item 15 (pain) of the Fibromyalgia Impact Questionnaire (FIQ) [ 24].
A total of 18 outcome variables from the following scales were used: Pain: Brief Pain Inventory (BPI) (overall score for pain interference and average pain intensity) [ 23 ] and item 15 (pain) of the Fibromyalgia Impact Questionnaire (FIQ) [ 24 ].
BPI pain interference and average pain intensity, FIQ items, and the areas of the SDS are rated on an 11-point scale ranging from 0 (best) to 10 (worst).
In our study, we included the four BPI questions related to pain intensity (pain now, worst pain last weak, least pain last weak and average pain last week) and the seven questions related to pain interference with daily functions (interference with general activity, mood, walking, work, relations with others, sleep and enjoyment of life).
The 7 items relating to pain interference were averaged to provide an overall interference score.
