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Table 2 Height and height-for-age Z-scores * of boys and girls aged 6–9 years in COSI Round 2 (2009/2010), by age and country

From: WHO European Childhood Obesity Surveillance Initiative: body mass index and level of overweight among 6–9-year-old children from school year 2007/2008 to school year 2009/2010

Age group and country Height (cm) H/A Z-score
  Boys Girls Boys Girls
  Mean (SD)    
6-year-olds
 BEL 120.5 (5.3)§a 119.6 (5.3)a 0.36 (0.99)§a 0.34 (0.95)a
 SVN 124.4 (5.3)§b 123.5 (5.5)b 0.87 (0.99)b 0.88 (0.99)b
 ESP 121.4 (5.5)§c 120.5 (5.5)c 0.45 (1.01)c 0.41 (1.00)a
7-year-olds
 BEL 125.6 (6.0)§a 124.7 (6.0)a 0.32 (1.02)§a 0.29 (1.00)a
 CZE 126.0 (5.4)§abc 124.8 (5.7)abc 0.65 (1.00)bcde 0.57 (1.04)bc
 GRC 128.5 (5.8)§d 127.8 (5.9)de 0.71 (1.07)bf 0.70 (1.03)cd
 HUN 127.2 (5.9)§ef 126.0 (5.9)f 0.56 (1.07)beg 0.51 (1.04)be
 IRL 125.5 (5.2)§ac 123.8 (5.4)b 0.35 (0.93)ah 0.23 (0.96)af
 LVA 128.7 (5.6)§d 127.3 (5.7)d 0.62 (1.00)§be 0.51 (0.98)be
 LTU 129.5 (5.7)§g 128.6 (5.8)g 0.76 (1.02)cf 0.72 (1.00)d
 PRT 126.4 (5.5)§bce 125.5 (5.7)cf 0.35 (0.97)ah 0.33 (0.98)af
 SVN 129.0 (5.5)§dg 128.1 (5.6)eg 0.81 (0.95)f 0.78 (0.95)d
 ESP 127.1 (5.6)§ef 126.0 (5.7)f 0.47 (0.98)gh 0.40 (0.96)ef
 MKD 127.3 (6.4)§f 126.2 (6.4)f 0.52 (1.16)deg 0.48 (1.11)be
8-year-olds
 BEL 132.6 (5.9)§a 131.8 (6.0)a 0.48 (0.98)§a 0.41 (0.98)ab
 ITA 133.1 (6.0)§b 132.0 (6.1)b 0.41 (1.00)§b 0.29 (1.01)c
 NOR 133.1 (5.7)§bc 131.8 (5.8)ab 0.63 (0.96)§c 0.48 (0.94)a
 SVN 134.4 (5.8)§d 133.6 (5.8)c 0.76 (0.95)§d 0.68 (0.94)d
 ESP 132.4 (6.0)§ac 131.8 (5.9)ab 0.42 (0.99)ab 0.37 (0.96)bc
9-year-olds
 BEL 137.3 (6.5)§a 136.9 (6.8)a 0.40 (1.01)§a 0.28 (1.03)a
 GRC 139.9 (6.7)§b 139.3 (6.7)b 0.74 (1.07)§b 0.59 (1.07)b
 IRL 136.5 (5.8)§c 134.9 (6.5)c 0.37 (0.94)§ac 0.11 (1.04)c
 ITA 135.6 (6.0)§c 134.7 (6.3)c 0.32 (0.99)§c 0.15 (1.02)c
 LTU 140.5 (6.3)§b 139.9 (6.4)b 0.72 (1.00)§b 0.57 (0.99)b
 SVN 137.7 (6.0)§a 137.0 (6.2)a 0.67 (0.99)§b 0.55 (1.02)b
 ESP 137.8 (6.2)§a 136.9 (6.6)a 0.43 (0.96)§a 0.25 (0.99)ac
  1. Abbreviations: ANOVA analysis of variance, COSI Childhood Obesity Surveillance Initiative, H/A height-for-age, SD standard deviation, WHO World Health Organization.
  2. *Based on the 2007 WHO growth reference for school-age children and adolescents [17].
  3. Children with a H/A Z-score < −6 or > +6 were excluded.
  4. The country codes refer to the International Organization for Standardization (ISO) 3166–1 Alpha-3 country codes and countries were listed in alphabetical order by their full names: BEL, Belgium (Flanders); CZE, Czech Republic; GRC, Greece; HUN, Hungary; IRL, Ireland; ITA, Italy; LVA, Latvia; LTU, Lithuania; NOR, Norway; PRT, Portugal (all regions except Madeira); SVN, Slovenia; ESP, Spain; MKD, the former Yugoslav Republic of Macedonia.
  5. †Statistically significant difference of mean value across countries for the indicated age group (one-way ANOVA; P < 0.0001).
  6. §Statistically significant difference of mean value between boys and girls for the indicated country (one-way ANOVA; P < 0.05).
  7. a,b,c,d,e,f,g,hWithin each sex-age group (e.g. 6-year-old boys), mean values that share the same superscript letter do not statistically significantly differ from each other (Games-Howell post hoc test). For example, for the 6-year-old boys, each mean H/A Z-score value is significantly different from the other two whereas the value of Slovenian 6-year-old girls differed significantly from the other two and no significant difference was found between Belgian and Spanish 6-year-old girls.