TABLE 1

Dependent Variables

Study design
    RCT
    Systematic review or meta-analysis
    Retrospective cohort study
    Prospective cohort study
    Case-control study
    Cross-sectional study
    Clinical trial (nonrandomized)
    Case series
    Case report
    Ecologic study
    Diagnostic test study
    Other
Study purpose
    Therapy
    Diagnosis
    Prognosis
    Harm
    Epidemiological investigation
    Health services
Study location
    ICU (medical, surgical, or pediatric)
    NICU
    Inpatient
    Emergency department or pre-hospital transport
    General practice
    Subspecialty practice
    Community, home, or nursing home
    School or child care center
    Data set analysis or medical record review
    Study of health care providers
    Clinical research center
    Other