|Description of program type and specimen collection method|
|Program type||Description||Test-kit delivery||Specimen return|
|Outreach programs||Field staff recruited participants at their homes and collected specimens||In-person||In-person|
|PTK on invitation acceptance||People were invited through phone calls and/or letters to receive PTKs, those who agreed were sent a PTK||Post||Post|
|PTK along with invitation||People were sent PTKs along with invitation letters||Post||Post|
|PTK with in-person invitation||People were directly invited to receive a PTK by study personnel||In-person or post||Post|
|PTK without invitation||PTKs were requested through the internet or phone without any direct invitations. Various advertisement strategies were used||Post||Post, drop-off|
|PTK with pick-up||PTKs were picked-up from designated locations (e.g. from boxes at workplace) without direct invitations||Pick-up||Post|
|Multiple strategies||A combination of different strategies was used, but outcomes were not presented separately for each strategy||In-person, post or pick- up||Post|
PTK, postal test kit.
Jamil et al.
Jamil et al. BMC Public Health 2013 13:189 doi:10.1186/1471-2458-13-189