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Table 6

Search strategy for Medline (via OvidSP)

Part A: Generic search for randomized controlled trials and controlled clinical trials
 1Clinical Trial .pt.
 2randomized.ab,ti.
 3placebo.ab,ti.
 4dt.fs.
 5randomly.ab,ti.
 6trial.ab,ti.
 7groups.ab,ti.
 8or/1–7
 9Animals/
 10Humans/
 119 not (9 and 10)
 128 not 11
Part B: Specific search for low back problems
 13dorsalgia.ti,ab.
 14exp Back Pain/
 15backache.ti,ab.
 16exp Low Back Pain/
 17(lumbar adj pain).ti,ab.
 18lumbago.ti,ab.
 19or/13-18
Part C: Specific search for economic evaluation
 20economics/
 21exp “costs and cost analysis”/
 22economics, dental/
 23exp “economics, hospital”/
 24economics, medical/
 25economics, nursing/
 26economics, pharmaceutical/
 27(economic$ or cost or costs or costly or costing or price or prices or pricing or pharmacoeconomic$).ti,ab.
 28(expenditure$ not energy).ti,ab.
 29(value adj1 money).ti,ab.
 30budget$.ti,ab.
 31or/20–30
 32((energy or oxygen) adj cost).ti,ab.
 33(metabolic adj cost).ti,ab.
 34((energy or oxygen) adj expenditure).ti,ab.
 35or/32–34
 3631 not 35
Part D: Combine
 3712 AND 19 AND 36
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