Table 1.

Methods across CNPC sites

Site	Population group	Methods	Sample size	Data collection	Analysis (thematic categories)	Recruitment	Biospecimen information
AANCART	Chinese Hmong Vietnamese	Focus groups (FG) Community questionnaires (CQ)	FG/n = 6 CQ/n = 54	FG: audio recorded and transcribed; CQ: pen and paper; manual data entry	1. Knowledge about biospecimens 2. Degree of willingness to donate 3. Cultural perspectives on biospecimens 4. Preferences in donation 5. Message content	Community partners and contacts at community events/ convenience sample. Incentive: $30 gift card (retailer)	Official NCI definition of biospecimens Examples of types of biospecimens
TBCCN	Mixed race African American Hispanic/Latino	Focus groups (FG)	FG/n = 12	FG: audio recorded and transcribed	1. Biobanking knowledge 2. Barriers 3. Benefits 4. Message content	Community advisory group and TBCCN partners Incentive: $30 gift card (retailer)	Official NCI definition of biospecimens Examples of types of biospecimen
WNYC2	African American White Hispanic/Latino Other mix	Key Informant Interviews (KII) Focus groups (FG)	KII/n = 15 FG/n = 7	KII: pen and paper, notes; FG: audience response system/electronic download; notes; audio recorded; CS: pen and paper; manual data entry	1. Biobanking knowledge 2. Barriers 3. Benefits 4. Message content	Community gatekeepers (KII) Incentive: $15; Community participants from previous cancer education events (FG), incentive: $10 gift card (retailer) and food; Community events (surveys)	Examples of types of biospecimens (i.e., blood, urine, saliva)