Table 2

Preliminary dataset, records identified via PubMed and ICL
(Index to Chiropractic Literature) keyword searches
(includes duplicates)

KeywordChiropractic  Spinal manipulation Total references per batch
 PubMedICLPubMedICL 
Autoimmune351426176
Blood Pressure71747826249
Cortisol71010431
Cytokine2956929110
HRV or Heart Rate Variability27533023133
Immune or Immunity93948455326
Interferon628218
Interleukin189291066
Sleep871523327299
Substance P5013018
TGF or Transforming Growth Factor418115
TNF or Tumor Necrosis Factor1416251570
TOTAL    1410