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Table 2 Summary of analyses.*

From: Osteopathic manipulative treatment for low back pain: a systematic review and meta-analysis of randomized controlled trials

Meta-Analyses Sensitivity Analyses
Overall Median Contrasts Best-case and worst-case scenarios
4 possible combinations of contrasts including one control treatment per trial
Cleary [47] trial excluded
All 20 contrasts
Stratified Median Contrasts
   A. Control Treatment  
1. Active treatment or placebo control Best-case and worst-case scenarios
2 possible combinations of contrasts including one control treatment per trial
Cleary [47] trial excluded
All 16 contrasts
2. No treatment  
   B. Country Where Trial was Performed  
3. United Kingdom Best-case and worst-case scenarios
2 possible combinations of contrasts including one control treatment per trial
Cleary [47] trial excluded
All 10 contrasts
4. United States Best-case and worst-case scenarios
2 possible combinations of contrasts including one control treatment per trial
All 10 contrasts
   C. Duration of Follow-Up  
5. Short-term Best-case and worst-case scenarios
All 9 contrasts
6. Intermediate-term 4 possible combinations of contrasts including one control treatment per trial
7. Long-term 2 possible combinations of contrasts including one control treatment per trial
Cleary [47] trial excluded
  1. *There were insufficient contrasts to perform sensitivity analyses for the no treatment stratified analysis. For the short-term stratified analysis, the median contrast was defined to be that corresponding to the eighth combination when effect sizes for the 16 possible contrast combinations were rank ordered from least to greatest. For the intermediate-and long-term stratified analyses, the median contrasts defaulted to the all-contrasts analyses because there were no repeated measures within these time intervals in any trial. All possible contrast combinations were included in the sensitivity analyses for intermediate-and long-term follow-up because of the limited numbers of combinations for these analyses.
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