Table 2.

Eligibility Criteria for Systematic Review

Inclusion criteria

Exclusion criteria

• Peer-reviewed journal articles • RCTs, case-control studies, crossover studies, case series, case studies, clinical trials, pilot trials, preliminary trials (primary research) • Articles reported in English • Respiratory disease measured with spirometry • Participants age ≥18 y • Spinal manipulation or manipulative manual therapy (high-velocity, low-amplitude) only, or in conjunction with other therapies (e.g., medications, exercise) • Intervention on respiratory disease

• Books, reference views, systematic reviews, literature reviews (secondary research) • Participants age <18 y • Manual therapy not including spinal manipulation (e.g., massage only, exercise only, TENS) • Lung cancer, other cancers affecting the lung/airways

RCT, randomized controlled trial; TENS, transcutaneous electrical nerve stimulation.