At 12 months, outcomes for both groups were still not different, but the percentage of patients who had improved had decreased and was no longer significantly different from baseline.
After a year, there were significant differences between both groups.
mnli hypothesis: After a year, there were significant differences between both groups. premise: At 12 months, outcomes for both groups were still not different, but the percentage of patients who had improved had decreased and was no longer significantly different from baseline.