Table 3.

Risk of bias, level of evidence, and strength of recommendation for non-randomized controlled trials.

	Risk of Bias in Non-Randomized Studies of Interventions								SORT
Study, Year	Confounding	Selection of Participants	Classification of Intervention	Deviations from Intended Interventions	Missing Data	Measurement of Outcome	Selection of Reported Result	Overall Risk of Bias	Level of Evidence	Strength of Recommendation
Krasner et al. [15], 2009	Moderate risk	Low risk	Low risk	Moderate risk	Low risk	Serious risk	Low risk	Serious Risk	2	B
Asuero et al. [17], 2013	Moderate risk	Low risk	Low risk	Moderate risk	Moderate risk	Serious risk	Low risk	Serious Risk	2	B
Fortney et al. [9], 2013	Moderate risk	Low risk	Low risk	Moderate risk	Low risk	Serious risk	Low risk	Serious Risk	2	B
Verweij et al. [20], 2016	Moderate risk	Low risk	Low risk	Moderate risk	Low risk	Serious risk	Low risk	Serious Risk	2	B
Hamilton-West et al. [21], 2018	Moderate risk	Low risk	Low risk	Moderate risk	Moderate risk	Serious risk	Low risk	Serious Risk	2	B
Sopezki et al. [22], 2020	Moderate risk	Low risk	Low risk	Moderate risk	Low risk	Serious risk	Low risk	Serious Risk	2	B

SORT, strength of recommendation taxonomy.