Table 3. Differences between patients who were enrolled in paediatric clinic immediately prior to transition and those who experienced a gap in care and re‐enrolled as adults (N = 70).

	Enrolled in paediatric clinic pre‐transition (n = 35)	Experienced gap in care pre‐transition (n = 35)	pa	Effect sizeb
No. (%) or mean (SD) [sample size, if observations missing]
Gender
Male	24 (68.6%)	20 (57.1%)	0.78	0.2
Transgender male	0	1 (2.9%)
Female	9 (25.7%)	12 (34.3%)
Transgender female	2 (5.7%)	2 (5.7%)
Race
Black/African‐American	32 (91.4%)	33 (94.3%)	0.61	0.2
More than one race	1 (2.9%)	2 (5.7%)
White	2 (5.7%)	0
Means of HIV transmission
Male–male sexual contact	24 (68.6%)	20 (57.1%)	0.59	0.1
Heterosexual	6 (17.1%)	9 (25.7%)
Perinatal	5 (14.3%)	6 (17.1%)
Insurance status
Uninsured	17 (48.6%)	24 (68.6%)	0.15	0.2
Medicaid	13 (37.1%)	6 (17.1%)
Private insurance	5 (14.3%)	5 (14.3%)
VL suppressed at time of last paediatric visit	17 (51.5%) [33]	9 (27.3%) [33]	0.04	0.2
Age at last paediatric visit	24.2 (1.3)	22.3 (1.4)	<0.001	1.2
Age at first adult visit	24.6 (1.16)	23.8 (1.5)	0.017	0.6
Months between last paediatric and first adult visit (linkage time)	3.8 (3.9)	18.9 (8.3)	<0.001	2.3
CD4 count at time of last paediatric visit (cells/mm3)	407 (309)	387 (277) [34]	0.78	0.1
Retained in first year of adult care	32 (91.4%)	30 (85.7%)	0.45	0.1
Retained in second year of adult care	22 (64.7%) [34]	16 (47.1%) [34]	0.14	0.2
VL suppressed at time of last adult visit	19 (54.3%)	12 (35.3%) [34]	0.11	0.2
CD4 count at time of last adult visit (cells/mm3)	406 (316)	299 (292) [34]	0.15	0.3

Values are reported as frequency (%) for categorical variables and mean (standard deviation) for continuous variables.

^aFisher's exact test for gender and race; Chi‐square test for all other categorical variables; two‐sample t‐test for continuous variables.

^bCohen's w reported for categorical variables and Cohen's d reported for continuous variables.

VL: viral load