Table 2.

Participant recruitment via recruitment methods.

Recruitment method			Participants, n (%)		Total cost for each strategy								Cost per participant recruited
					Aus $		US $		£		€		Aus $		US $		£		€
Online methods
	Gumtree	5 (0.8)		36.43		24.81		20.44		22.16		7.29		4.96		4.09		4.43
	Web promotions and internet search	10 (1.5)		437.56		298.00		245.55		266.22		43.76		29.80		24.56		26.62
	Twitter	1 (0.2)		61.52		41.90		34.52		37.43		61.52		41.90		34.52		37.43
	Facebook	547 (83.5)		33,738.52		22,977.28		18,932.47		20,526.24		61.68		42.01		34.61		37.53
	Email	18 (2.7)		2315.98		1577.32		1299.56		1409.07		128.67		87.63		72.20		78.28
Traditional methods
	Word of mouth	19 (2.9)		0		0		0		0		0		0		0		0
	Television (initiated or completed by television station—no cost to study)	1 (0.2)		0		0		0		0		0		0		0		0
	Newspaper	47 (7.2)		2363.38		1609.60		1326.27		1437.90		50.28		34.25		28.22		30.59
	Radio (live interviews)	2 (0.3)		205.55		139.99		115.36		125.06		102.78		70.00		57.68		62.53
	Magazine	2 (0.3)		170.81		116.33		95.86		103.92		85.41		51.96		47.93		58.17
	Posters	1 (0.2)		566.65		385.92		318.01		344.76		566.65		385.92		318.01		344.76
	Flyers	1 (0.2)		2546.29		1734.18		1429.38		1549.64		2546.29		1734.18		1429.38		1549.64
	Telephone	1 (0.2)		3990.84		2757.67		2227.85		2477.11		3990.84		2757.67		2227.85		2477.11