Table 6
Studies providing indirect adverse event definition only (n = 4).
Authors, year, citation Study design Definition Giles et al. 2003 [98] Observational Study Events requiring remedial treatment; minor transient increase in spinal pain symptoms that did not qualify as an adverse event Hay et al. 2005 [94] Trial “An exacerbation of pain after the initial assessment’’ de Oliveira et al. 2013 [32] Trial “Did your symptoms get worse after this treatment?” “Are you feeling any different symptom after this treatment?” Satpute et al. 2020 [99] Case Reports/Series “There were no adverse events during or after each treatment session in terms of dizziness, increase in pain intensity, or induction of other symptoms.’’