Search	Query	Total, n
1	((MM “Back Pain+/CL” OR MM “Back Injuries/CL” OR MM “Spinal Diseases/CL” OR MM “Intervertebral Disk Displacement/CL” OR MM “Spondylarthritis/CL” OR MM “Osteoarthritis, Spine/CL” OR MM “Spondylarthropathies/CL” OR MM “Spondylosis+/CL” OR MM “Spinal Stenosis/CL” OR MM “Neuralgia+/CL” OR MM “Sacroiliac Joint Dysfunction/CL” OR “start back”)	700
2	(MH “Back Pain+” OR MH “Back Injuries” OR MH “Spinal Diseases” OR MH “Intervertebral Disk Displacement” OR MH “Spondylarthritis” OR MH “Osteoarthritis, Spine” OR MH “Spondylarthropathies” OR MH “Spondylosis+” OR MH “Spinal Stenosis” OR MH “Neuralgia+” OR MH “Sacroiliac Joint Dysfunction” OR MH “Lumbar Vertebrae” OR MH “Intervertebral Disk” OR MH “Zygapophyseal Joint” OR (“musculoskeletal pain*” AND (“back” OR “spine” OR “spinal”)) OR “spinal pain*” OR “back disorder*” OR “back pain” OR “back pains” OR “back injur*” OR “backache*” OR “back ache*” OR “back strain*” OR “back sprain*” OR “failed back” OR “lumbago” OR ((“lumbar” OR “lumbosacral*” OR “lumbo sacral*” OR “lower back”) N5 (“pain” OR “pains” OR “painful” OR “stenosis” OR “stenosis” OR “radiculopathy” OR “instability” OR “instabilities” OR “strain” OR “strains”)) OR “lumbar dysfunction” OR ((“disc” OR “discs” OR “disk” OR “disks”) N5 (“herniated” OR “herniation” OR “herniations” OR “degenerative” OR “degeneration” OR “prolapse*”)) OR “coccydynia” OR “spondylarth*” OR “spondylisthesis” OR “spondylo*” OR “sciatica” OR “facet joint*” OR “zygapophyseal joint*”)	77425
3	(((“accuracy*” OR MH “Algorithms” OR “algorithm*” OR “classif*” OR MH “Clinical Assessment Tools” OR “clinical exam*” OR “physical exam*” OR MH “Functional Assessment+” OR “screening” OR “cluster*” OR “cohort*” OR MH “Prospective Studies” OR “subgroup*” OR “subtype*” OR “diagnose” OR “diagnosing” OR MH “Diagnosis, Musculoskeletal” OR MH “Models, Statistical” OR MH “Cox Proportional Hazards Model” OR MH “Linear Regression+” OR MH “Logistic Regression+” OR “predict*” OR MH “Predictive Value of Tests” OR TX “prognos*” OR “reliab*” OR MH “Reliability and Validity+” OR “sensitivity analys*” OR MH “Sensitivity and Specificity” OR MH “ROC Curve” OR “specificity” OR MH “Severity of Illness” OR “valid*” OR MH “Validation Studies” OR MH “Treatment Failure”) AND (MH “Chiropractic+” OR TX “chiropract*” OR TX “physical therap*” OR TX “physiotherap*” OR MH “Physical Therapy+” OR MH “Physicians, Family” OR MH “Primary Health Care” OR TX “primary care” OR TX “primary health care” OR TX “primary healthcare”)) OR “back screen*” OR “categorize” OR “categorization” OR MH “Classification+” OR “classification based” OR “classification scheme*” OR “classification system*” OR “clinical decision*” OR MH “Critical Path” OR “clinical pathway*” OR “clinical prediction*” OR MH “Cluster Analysis” OR “cluster analys*” OR MH “Cluster Sample+” OR MH “Decision Making” OR MH “Decision Making, Clinical” OR “decision rule*” OR “decision support” OR MH “Decision Support Techniques” OR “diagnostic classification” OR MH “Self Assessment” OR “disability evaluation*” OR MH “Exercise Test+” OR “exercise test*” OR MH “Movement/EV” OR “movement test*” OR “ICF” OR “mechanical diagnosis” OR MH “Patient History Taking+” OR “history taking” OR “Mckenzie” OR “movement system*” OR MH “Palpation” OR MH “Physical Examination” OR MH “Chiropractic Assessment” OR MH “Geriatric Assessment+” OR MH “Physical Therapy Assessment” OR “predictive model*” OR “stratif*” OR “sub classification*” OR “subclassification*” OR “sub group*” OR “subgrouping*” OR “targeted treatment*” OR (“classif*” AND (MH “disability evaluation+” OR “evidence based” OR “functioning” OR “gait” OR “impairment*” OR “mechanism*” OR “motor control*” OR MH “Movement+” OR “movement*” OR “walking” OR “pathoanatom*” OR “psychological” OR “psychosocial” OR “rehabilitation” OR “treatment based” OR “cognitive” OR “multidimensional” OR “clinical”)) OR (“subgroup*” AND (MH “Disability Evaluation+” OR MH “exercise+” OR “exercise*” OR “manipulation*” OR “impairment*” OR MH “Movement+” OR “movement*” OR “prognos*” OR “predictor*” OR “rehabilitation” OR “cognitive” OR “multidimensional” OR “clinical”)))))	662949
4	(MH “Randomized Controlled Trials+”) OR (MH “Systematic Review”) OR (MH “Meta Analysis”) OR (MH “Meta Synthesis”) OR (MH “Systematic Review”) OR (MH “Placebos”) OR (ZT “randomized controlled trial”) OR (ZT “Systematic Review”) OR (ZT “Meta Analaysis”) OR (ZT “Practice Guideline”) OR (MH “Placebos”) OR randomized OR randomised OR randomization OR randomisation OR placebo OR randomly OR “single blind” OR “single blinded” OR “double blind” OR “double blinded” OR systematic OR systematically OR meta-analysis OR meta-synthesis OR meta-analyses OR meta-syntheses OR “meta analysis” OR “meta synthesis” OR “meta analyses” OR “meta syntheses” OR metaanalysis OR metaanalyses OR meta-analytic OR “meta analytic” OR metaanalytic OR “umbrella review” OR “umbrella reviews” OR “scoping review” OR “scoping reviews” OR “rapid review” OR “rapid reviews” OR “practice guideline” OR “clinical guideline” OR ((review OR reviews OR reviewed OR search OR searches OR searched OR searching OR handsearch OR handsearched) AND (“inclusion criteri*” OR “exclusion criteri*” OR references OR papers OR articles OR publications OR studies OR trials OR datasets OR databases))	969590
5	1 OR (2 AND 3)	18303
6	4 AND 5	5616