Treatment (interventions) | Explode clinical trials (index term) OR random: (textword) OR research (publication type) | *Clinical trial (publication type) OR random: (textword) OR double-blind method (index word) OR placebo: (textword) |
Diagnosis (screening and assessment) | Explode diagnosis (index term) | *Explode sensitivity and specificity (index term) OR sensitivit: (textword) OR specificit: (textword) OR diagnosis (subheading exploded) OR diagnostic use (subheading exploded) |
Prognosis | Disease progression (index term) OR explode prospective studies (index term) OR explode mortality (index term) OR explode morbidity (index term) OR time factors (index term) OR explode prognosis (index term) OR prognosis (textword) | *Incidence (textword) OR explode mortality (index word) OR follow-up studies (index word) OR prognosis: (textword) OR predict: (textword) OR course: (textword) |
Causation | Explode prospective studies (index term) OR explode case-control studies (index term) OR explode risk factors (index term) OR risk: (textword) | *Explode cohort studies (index word) OR explode risk (index word) OR odds ratio: (textword) OR relative risk: (textword) OR case-control (textword) |
Systematic reviews and meta-analyses5 Use these strategies in each of the categories above for retrieval of systematic reviews | Meta-analysis (index term) OR meta-analysis (textword) OR metaanalysis (textword) OR MEDLINE (textword) AND [review (publication type) OR systematic review (textword)] | Meta-analysis (publication type) OR meta-analysis (index term) OR meta-analysis (textword) OR metaanalysis (textword) OR systematic review: (textword) OR [MEDLINE (textword) AND review (publication type)] |
Qualitative studies | Qualitative studies (index word) OR ethnographic research (index word) OR ethnonursing research (index term) OR phenomenological research (index term) OR focus groups (index term) OR grounded theory (index term) | Nursing methodology research (index term) OR qualitative research (textword) OR grounded theory (textword) OR ethnograph: (textword) |