Table 1.

Characteristics of the study population

Characteristic		Siblings	Survivors
		N=3149	1970-1979 N=4618	Survivors 1980-1989 N=4669	1990-1999 N=5279
Attained age at questionnaire (years)	Mean (SD)	29.6 (7.3)	28.5 (6.4)	26.9 (6.0)	25.7 (5.8)
	Median (Range)	29.0 (18.0, 56.0)	28.0 (18.0, 47.0)	26.0 (18.0, 48.2)	24.9 (18.0, 42.4)
Age at diagnosis (years)	Mean (SD)		8.7 (5.8)	10.1 (5.8)	9.0 (6.1)
	Median (Range)		7.7 (0.0, 21.0)	10.3 (0.0, 21.0)	8.5 (0.0, 21.0)
Survival time (years)	Mean (SD)		20.3 (3.0)	17.0 (5.6)	16.8 (3.5)
	Median (Range)		20.1 (12.9, 30.2)	15.6 (6.4, 27.3)	16.9 (8.4, 23.9)
		%	%	%§	%§
Sex	Male	47.2	51.1	52.3	50.6
	Female	52.8	48.9	47.7	49.4
Race/ethnicity	Non-Hispanic White	88.3	90.5	83.4	74.0
	Non-Hispanic Black	2.5	2.8	4.8	8.2
	Hispanic	3.4	4.3	7.0	11.9
	Asian	0.9	0.6	1.7	1.9
	Other/Unknown	4.9	1.8	3.2	4.0
High school graduate	Yes	94.1	91.7	92.7	91.5
	No	5.9	8.3	7.3	8.5
Health insurance	Yes	89.0	84.7	83.2	79.8
	No	11.0	15.3	16.8	20.2
Body mass index*	Underweight	3.6	6.3	5.4	3.8
	Normal	51.4	52.1	51.0	47.2
	Overweight	29.1	27.7	27.4	27.6
	Obese	15.9	13.9	16.2	21.3
Smoking status	Never	58.3	69.9	68.2	67.6
	Former	17.1	11.5	14.8	16.1
	Current	24.6	18.6	16.9	16.3
Heavy drinking†	Yes	13.3	10.1	16.2	22.5
	No	86.7	89.9	83.8	77.5
Meets physical activity guidelines‡	Yes	40.4	34.7	42.4	46.2
	No	59.6	65.3	57.6	53.8

SD=standard deviation, %=percent, N=number, kg=kilogram, m=meter

^*Underweight: <18.5 kilograms/square meter (kg/m²), Normal: 18.5-24.9 kg/m², Overweight: 25-29.9 kg/m², Obese: ≥30kg/m²;

^†Consuming > 4 drinks/day or > 14 drinks/week for males and consuming > 3 drinks/day or > 7 drinks/week for females,

^‡≥150 minutes of moderate or 75 minutes of vigorous physical activity per week;

^§Sampling weights applied