Table 1 Basic characteristics of the reference population for boys and girls

From: C-reactive protein reference percentiles among pre-adolescent children in Europe based on the IDEFICS study population

 

Girls

Boys

 

N (%)

N (%)

Sex

4854 (49.3)

5001 (50.7)

 

Mean (s.d.)

Mean (s.d.)

Age, years

6.53 (1.91)

6.45 (1.91)

Weight, kg

23.40 (6.52)

23.76 (6.67)

Height, cm

119.8 (13.2)

120.5 (13.2)

BMI, kg m2

16.00 (1.84)

16.05 (1.78)

BMI, z-score

0.15 (0.99)

0.11 (1.00)

 

N (%)

N (%)

Age categories

  

 2–2.9-year olds

99 (2.0)

101 (2.0)

 3–3.9-year olds

478 (9.9)

531 (10.6)

 4–4.9-year olds

639 (13.2)

689 (13.8)

 5–5.9-year olds

592 (12.2)

645 (12.9)

 6–6.9-year olds

757 (15.6)

766 (15.3)

 7–7.9-year olds

1067 (22.0)

1055 (21.1)

 8–8.9-year olds

796 (16.4)

794 (15.9)

 9–9.9-year olds

288 (5.9)

297 (5.9)

 10–10.9-year olds

138 (2.8)

123 (2.5)

BMI categories

 Thinness grade I–III

592 (12.2)

617 (12.3)

 Normal weight

3557 (73.3)

3766 (75.3)

 Overweight

705 (14.5)

618 (12.4)

Survey

T0

4351 (89.6)

4546 (90.9)

T1

503 (10.4)

455 (9.1)

  1. Abbreviations: BMI, body mass index; %, sex-specific percentage of corresponding categories.