Table 1.

Details of Comparison Studies.

Study	Population and Location	Data Type
Australian Comparison Studies
Harrison et al. [15]	43,501 GP patients in 1449 GP clinics across Australia	GP survey based on clinical records of consecutive patients
NPS MedicineWise [27]	2,893,532 GP patients in 3255 GP clinics across Australia	Clinical records
International Homelessness Comparison Studies
Bowen et al. [28]	928 homeless GP patients in the West Midlands, England	Clinical records
Keogh et al. [13]	105 homeless GP patients in 4 health clinics across Dublin	Self-reported via 133-item questionnaire
Zeitler et al. [12] (and Queen et al. [16] for additional conditions not presented in Zeitler)	133 homeless GP patients in Glasgow and 150 homeless GP patients in Edinburgh	Clinical records