Table 2.

PRISMA statement

	MCI Triage	PHLSDC	PHP
References retrieved via search	304	332	304
Additional via other means	11	2	61
Duplicates discarded	4	5	80
References screened	311	329	285
References discarded	200	113	129
References assessed	111	216	156
References discarded	84	179	68
References data extracted	27	37	88