Table 2.

Comparison of inclusion criteria for the systematic review update and systematic reviews in review of reviews (ROR) approach

	Systematic review update Inclusion criteria	SRs with inclusion criteria matching SR update eligibility criteria*
		N	%
Population	Localized prostate cancer	27	90
Interventions studied in one or more arm	Active therapy (surgery and/or radiation)	17	57
	Ablative therapy only	9	30
Comparators studied in one or more arm	Active treatment comparator	17	57
	Conservative treatment comparator	11	37
	No comparator	8	27
Study design	Randomized and non-randomized trials	20	67
	Observational studies	14	47
	Single arm studies	8	27
Total		30	100

*Studies may include multiple arms or multiple study types; percentages do not sum to 100