Table 2: Subject intracranial compliance index (ICCI) data (). PC-MRI6 acquired ICCI1 data reported at baseline, week four, and week eight following NUCCA5 intervention. Bolded rows signify subject with secondary venous drainage route. MVA or mTBI occurred at least 5 years prior to study inclusion, average 10 years.

ID2AgeSexNumber of NUCCA5 correctionsVenous drainage routeICCI1History of a
BaselineWeek fourWeek eightMVA4mTBI3

134F1Jugular5.025.494.79YesYes
244F2Secondary15.29.2912.98Yes
335M2Secondary4.084.86YesYes
429F1Jugular8.739.139.99
528M2Secondary5.918.188.46YesYes
643F1Jugular4.664.654.63YesYes
747F1Jugular5.584.935.59Yes
854F3Jugular5.044.463.87Yes
961F1Jugular5.595.664.19Yes
1052M5Secondary5.75.3YesYes
1120F2Jugular4.816.057.14

Mean of two values provided.
1ICCI: intracranial compliance index.
2ID: subject identification.
3mTBI: mild traumatic brain injury.
4MVA: motor vehicle accident.
5NUCCA: National Upper Cervical Chiropractic Association.
6Phase Contrast Magnetic Resonance Imaging.