To determine the census tract poverty rate based on Statistics Canada 2016 Census of Population data, which metric do I reference?

Prevalence of low income based on the Low-income measure; after tax (LIM-AT) (%)

or

Prevalence of low income based on the Low-income cut-offs; after tax (LICO-AT) (%)

or

some other metric?

or

is either the LIM-AT or LICO-AT an acceptable metric to reference?