Fig. 1

Trial design and employment of GPs at trial facilities. GP, general practitioner. Block numbers − 5 to 0 indicate retrospective period. Block numbers 1–10 indicate stepped wedge trial. Block numbers 11–16 indicate prospective follow-up period. Note that block lengths were 63 days (9 weeks), they commenced 19th December 2011, and concluded 4th October 2015. Black blocks indicate wash-out period during roll-out of the intervention. Grey blocks indicate old model of care. White blocks indicate new model of care. 0 indicates GP not employed at that site for at least half of the duration of that block. 1 indicates GP employed at that site for at least half of the duration of that block