One-year effects of two intensive inpatient treatments for severely obese children and adolescents

Table 1 Baseline characteristics of the study population

	Total	Short-stay group	Long-stay group
	N = 80	N = 40	N = 40
Age (years) [mean (SD)]	14.8 (2.3)	14.5 (2.4)	15.0 (2.2)
Female [n (%)]	53 (66.3)	28 (70.0)	25 (62.5)
Ethnicities [% of total]
Western	61.5	69.2	53.8
Non-Western	38.5	30.8	46.2
Educational level of the parents/caregivers [% of total]^a
Low	38.7	38.5	38.9
Medium/intermediate	42.7	43.6	41.7
High	18.7	17.9	19.4
SES [% of total]
Below average	65.8	59.5	71.8
Above average	34.2	40.5	28.2
Household situation [% of total]
Married/living together	55.0	62.5	47.5
Divorced	33.8	32.5	35.0
One parent family(mother)	7.5	2.5	12.5
Other situation	3.8	2.5	5.0
SDS-BMI [mean (SD)]	3.4 (0.39)	3.4 (0.39)	3.4 (0.39)

The short-stay group participated in a two-month intensive inpatient treatment during weekdays, followed by biweekly return visits of 2 days during the next 4 months, then followed by six monthly return visits of 2 days. The long-stay group participated in a six-month intensive inpatient treatment during weekdays, followed by six monthly return visits of 2 days
Abbreviations: SD standard deviation, SDS-BMI standard deviation of body mass index, SES socio economic status
^aEducational level was classified according to the definition of Statistics Netherlands (http://www.cbs.nl)