Table 1 Clinical characteristics of the patients.

Patient	Sex	Age (yrs)	Time of treatment (wks)	Risk factor	Treatment protocol	BMI (kg.m-2)	BMI percentile*	VO2peak (ml.kg.min-1)
I	F	11	116	High	PROP-II-97	19.5	50-75	33.1
II	M	6	45	Low	GBTLI-99	21.7	50-75	25.8
III	F	16	30	High	PROP-II-97	24.8	75-85	27.6
IV	F	14	98	High	PROP-II-97	16.1	75-85	31.4
V	F	9	91	Low	GBTLI-99	16.2	25-50	28.9
VI	M	6	78	Low	GBTLI-99	21.5	>95	18.1

*according to National Center for Health Statistics percentiles.F=female; M=male; PROP-II-97=treatment protocol for children with leukemia at high risk (see the methods section for more details); GBTLI-99=treatment protocol for children with leukemia at low risk (see the methods section for more details); BMI=body mass index.