Table 5.

Risk of bias and GRADE assessment of non-Randomized controlled trials of Tai Chi and Qigong for traumatic brain injury

Study	ROBINS-I								GRADE
	Confounding factors	Selection of participants	Measurement of interventions	Departure from intended interventions	Missing data	Measurement of outcomes	Selection of report results	Overall	Certainty of evidence
Xu 2018 [101]	Moderate risk	Low risk	Low risk	Low risk	No info	Moderate risk	Moderate risk	Moderate risk	Low
Manko 2013 [99]	Serious risk	Low risk	Low risk	Low risk	Low risk	Moderate risk	Moderate risk	Serious risk	Very low