Table 1.

Basic characteristics of the study population.

	All	Non-obese	Obese	p
Age (years)	12.95 ± 3.29 (200)	12.48 ± 3.25 (99)	13.41 ± 3.28 (101)	0.047
Sex (% of girls)	55.5 (200)	67.7 (99)	43.6 (101)	<0.001
Height (cm)	158.14 ± 17.74 (200)	154.29 ± 18.25 (99)	161.91 ± 16.47 (101)	0.002
Height SDS	2.16 ± 2.68 (200)	0.07 ± 1.41 (99)	0.42 ± 1.17 (101)	0.052
Body weight (kg)	65.1 ± 29.11 (200)	47.56 ± 15.91 (99)	82.29 ± 28.9 (101)	<0.001
BMI (kg/m2)	24.95 ± 7.85 (200)	19.3 ± 3.19 (99)	30.48 ± 7.08 (101)	<0.001
BMI SDS	0.25 ± 1.3 (200)	0.16 ± 0.99 (99)	4.12 ± 2.35 (101)	<0.001
TSH (mU/l)	3.01 ± 1.83 (200)	2.72 ± 1.53 (99)	3.31 ± 2.06 (101)	0.023
FT4 (pmol/l)	15.53 ± 2.6 (200)	16.03 ± 2.88 (99)	15.04 ± 2.21 (101)	0.007
FT3 (pmol/l)	6.96 ± 1.1 (142)	6.94 ± 1.11 (68)	6.97 ± 1.09 (74)	0.835
High sugar score	5.69 ± 1.36 (200)	5.99 ± 1.33 (99)	5.4 ± 1.35 (101)	0.002
High complex carbohydrate score	5.85 ± 1.25 (200)	6.04 ± 1.23 (99)	5.68 ± 1.24 (101)	0.041
High protein score	5.54 ± 1.52 (200)	5.57 ± 1.54 (99)	5.52 ± 1.51 (101)	0.820
High fat score	5.71 ± 1.38 (200)	5.86 ± 1.34 (99)	5.56 ± 1.41 (101)	0.122
Low fiber score	5.94 ± 1.38 (133)	6.11 ± 1.23 (69)	5.75 ± 1.51 (64)	0.131
Foods cotaining ≥1.5 g of saturated FA per 100 g	5.71 ± 1.32 (133)	5.93 ± 1.22 (69)	5.47 ± 1.38 (64)	0.041
Foods cotaining ≥1.5 g of polyunsaturated FA per 100 g	5.76 ± 1.3 (133)	5.97 ± 1.22 (69)	5.54 ± 1.35 (64)	0.057
Foods cotaining ≥1.5 g of monounsaturated FA per 100 g	5.73 ± 1.28 (133)	5.95 ± 1.21 (69)	5.49 ± 1.33 (64)	0.040

Data are expressed as the mean ± standard deviation. TSH, thyroid-stimulating hormone; FT4, free thyroxine; FT3, free triiodothyronine; BMI, body mass index; SDS, standard deviation score; FA, fatty acids. The p-value for the difference between populations of lean and obese children and adolescents, value in parentheses (number of participants). All significant values (p <0.005) are in bold