Table 1

Polish children and adolescents (the OLAF study sample) mean height z-scores relative to the six references and statistical testing

reference

N

Mean

95% CI

SD

p

Min.

Max.

boys


WHO 2007

6227

0.50

0.47 0.52

0.99

<.0001

-3.03

4.37

USCDC2000

6227

0.45

0.43 0.48

0.97

<.0001

-2.79

4.02

Krakow

6227

0.17

0.15 0.20

1.02

<.0001

-3.37

3.85

Warszawa

6227

0.08

0.05 0.11

1.06

<.0001

-3.63

4.07

Poznan

6227

0.05

0.03 0.08

1.09

0.0001

-3.73

4.08

Lodz

6227

0.14

0.11 0.16

1.04

<.0001

-3.66

3.88

girls


WHO 2007

6558

0.34

0.32 0.37

0.95

<.0001

-3.47

4.29

USCDC2000

6558

0.33

0.31 0.36

0.94

<.0001

-3.03

3.95

Krakow

6558

0.09

0.07 0.12

1.03

<.0001

-3.34

4.33

Warszawa

6558

0.01

-0.02 0.03

1.05

0.6338

-3.73

4.19

Poznan

6558

-0.06

-0.09-0.03

1.11

<.0001

-3.86

4.57

Lodz

6558

0.15

0.13 0.18

1.03

<.0001

-3.49

4.43


Kulaga et al. BMC Public Health 2010 10:109   doi:10.1186/1471-2458-10-109

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