Table 1.

Characteristics of original research articles on healthcare transition for youth living with HIV.

Study (year)	Country of study	Methodology			Inclusion of vertically or horizontally infected youth		Mean age of youth (years)	Study participants			Ref.
		Descriptive	Qualitative	Quantitative	Horizontal	Vertical		Providers	Patients	Caregivers
Miles et al. (2004)	UK		X			X	17.4 (at transition); 18.7 (at study)		X		[9]
Wiener et al. (2007)	USA			X			15.8 (at study)				[10]
Vijayan et al. (2009)	USA		X			X	16 (at study)	X	X	X	[11]
Campbell et al. (2010)	UK		X			X	13.8 (at study)		X		[12]
Fair et al. (2010)	USA		X		X	X	NA	X			[13]
Bundock et al. (2011)	UK and Australia			X			19 (at study)				[14]
Fair et al. (2011)	USA		X		X	X	NA	X			[15]
Gilliam et al. (2011)	USA		X		X	X	NA	X			[16]
Maturo et al. (2011)	USA	X					NA				[17]
Valenzuela et al. (2011)	USA		X		X		25.2 (at transition); 26.7 (at study)		X		[18]
Wiener et al. (2011)	USA		X	X		X	22 (at study); age at transition not reported		X		[19]
Fair et al. (2012)	USA		X			X	17.3 (at study)		X	X	[20]
Fair et al. (2012b)	USA		X		X	X	NA	X			[21]
Fish et al. (2014)	UK	X				X	17 (at transition); 21 (at study/death)				[22]
Sharma et al. (2014)	USA		X			X	18 (at study)		X	X	[23]

NA: Not available.