Table 1. Participant characteristics... | American Society of Hematology

Table 1.

Participant characteristics

Variable	N = 183
Variable	n	%
Sex
Male	94	51
Female	89	49
Genotype
HbSS/HbSβ⁰-thalassemia	123	67
HbSC/HbSβ⁺thalassemia/other	60	33
Transfer gap (mo)
<2	135	74
≥2 to <6	26	14
≥6	22	12
Insurance payor
Public	157	86
Private	11	6
Not insured	15	8
Hydroxyurea utilization
Ever used	137	75
Never used	46	25
Chronic transfusion history
Ever treated	61	67
Never treated	122	33

Variable	N = 183
Variable	n	%
Sex
Male	94	51
Female	89	49
Genotype
HbSS/HbSβ⁰-thalassemia	123	67
HbSC/HbSβ⁺thalassemia/other	60	33
Transfer gap (mo)
<2	135	74
≥2 to <6	26	14
≥6	22	12
Insurance payor
Public	157	86
Private	11	6
Not insured	15	8
Hydroxyurea utilization
Ever used	137	75
Never used	46	25
Chronic transfusion history
Ever treated	61	67
Never treated	122	33

	Median	IQR	Min, max
Adult patient follow-up time (y)	5.0	3.0-7.0	1.0-9.0
Age at transfer (y)	18.2	18.0-18.5	17.1-19.4
Pediatric inpatient visits (last 2 y)	0	0-2	0-15
Pediatric ED visits (last 2 y)	0	0-0	0-8
Pediatric outpatient visits (last 2 y)	20	12-32	3-198
Transfer gap (mo)	1.4	1.0-2.2	0-65
Adult inpatient encounters per year	0.3	0.2-1.0	0.1-10.7
Adult ED encounters per year	0.5	0.3-1.4	0.1-25.0
Adult outpatient encounters per year	5.0	2.4-8.4	0.3-36.9

	Median	IQR	Min, max
Adult patient follow-up time (y)	5.0	3.0-7.0	1.0-9.0
Age at transfer (y)	18.2	18.0-18.5	17.1-19.4
Pediatric inpatient visits (last 2 y)	0	0-2	0-15
Pediatric ED visits (last 2 y)	0	0-0	0-8
Pediatric outpatient visits (last 2 y)	20	12-32	3-198
Transfer gap (mo)	1.4	1.0-2.2	0-65
Adult inpatient encounters per year	0.3	0.2-1.0	0.1-10.7
Adult ED encounters per year	0.5	0.3-1.4	0.1-25.0
Adult outpatient encounters per year	5.0	2.4-8.4	0.3-36.9

ED, emergency department; max, minimum; min, maximum.