Table 2
Preliminary dataset, records identified via PubMed and ICL
(Index to Chiropractic Literature) keyword searches
(includes duplicates)
Keyword Chiropractic Spinal manipulation Total references per batch PubMed ICL PubMed ICL Autoimmune 35 14 26 1 76 Blood Pressure 71 74 78 26 249 Cortisol 7 10 10 4 31 Cytokine 29 5 69 29 110 HRV or Heart Rate Variability 27 53 30 23 133 Immune or Immunity 93 94 84 55 326 Interferon 6 2 8 2 18 Interleukin 18 9 29 10 66 Sleep 87 152 33 27 299 Substance P 5 0 13 0 18 TGF or Transforming Growth Factor 4 1 8 1 15 TNF or Tumor Necrosis Factor 14 16 25 15 70 TOTAL 1410