Answer:
Step-by-step explanation:
The results provided are from a study comparing the effects of ibuprofen alone versus ibuprofen combined with acetaminophen (placebo) on the improvement of the RMDQ (Roland-Morris Disability Questionnaire) score in patients after their emergency department (ED) visit.
1. Improvement in RMDQ score:
- Patients randomized to ibuprofen plus placebo reported a mean improvement in the RMDQ score of 11.9, with a standard deviation (SD) of 9.7.
- Patients randomized to ibuprofen plus acetaminophen reported a mean improvement in the RMDQ score of 11.1, with an SD of 10.7.
2. Between-group difference:
- The between-group difference in the improvement of the RMDQ score was 0.8. The 95% confidence interval (CI) for this difference was calculated to be 3.0 to 4.7. This means that the true difference between the two groups' mean improvements is likely to fall within this range with 95% confidence.
3. Pain levels at 1-week follow-up:
- Slightly more than 25% of patients in both study groups reported moderate or severe pain at the 1-week follow-up. The exact percentages or further details about the pain levels were not provided in the information provided.
In summary, both groups experienced improvements in the RMDQ score, indicating a reduction in disability. However, there was no significant difference in the improvement between the group receiving ibuprofen plus placebo and the group receiving ibuprofen plus acetaminophen. Additionally, more than 25% of patients in both groups still reported moderate or severe pain at the 1-week follow-up.