Figures & data
Figure 1 The Danish National Child Health Register: Coverage of the datasets, Breastfeeding, Measurements, and Smoking, based on the number of individuals in the respective datasets out of the total number of individuals from that birth year in the Civil Registration system, by year of birth from 2000 to 2019*. *Reporting became mandatory in December 2011, and since Breastfeeding and Smoking data input pertains to the first year of birth coverage is most relevant from 2012 onward.
![Figure 1 The Danish National Child Health Register: Coverage of the datasets, Breastfeeding, Measurements, and Smoking, based on the number of individuals in the respective datasets out of the total number of individuals from that birth year in the Civil Registration system, by year of birth from 2000 to 2019*. *Reporting became mandatory in December 2011, and since Breastfeeding and Smoking data input pertains to the first year of birth coverage is most relevant from 2012 onward.](/cms/asset/95580d61-9722-4e95-a6ee-23d6773f5074/dcle_a_12297777_f0001_c.jpg)
Figure 2 The Danish National Child Health Register: Smoking dataset - distribution of exposure status to secondhand smoking, by year of birth from 2012 to 2019.
![Figure 2 The Danish National Child Health Register: Smoking dataset - distribution of exposure status to secondhand smoking, by year of birth from 2012 to 2019.](/cms/asset/0c95f1ee-d826-4ca3-b159-9559ef3e2a03/dcle_a_12297777_f0002_c.jpg)
Figure 3 The Danish National Child Health Register: Breastfeeding dataset - distribution of duration of exclusive breastfeeding, by year of birth from 2012 to 2019.
![Figure 3 The Danish National Child Health Register: Breastfeeding dataset - distribution of duration of exclusive breastfeeding, by year of birth from 2012 to 2019.](/cms/asset/985036b4-2e03-4467-b2d5-fb7c23f940c9/dcle_a_12297777_f0003_c.jpg)
Figure 4 The Danish National Child Health Register: Measurements dataset - distribution of body mass index (BMI) classification by year of measurement and total number of individuals with available data on measurements*. *The BMI-category is applicable for ages two years and older and is based upon age- and sex-standardized BMI-curves developed by The International Obesity Task Force (IOTF).Citation34
![Figure 4 The Danish National Child Health Register: Measurements dataset - distribution of body mass index (BMI) classification by year of measurement and total number of individuals with available data on measurements*. *The BMI-category is applicable for ages two years and older and is based upon age- and sex-standardized BMI-curves developed by The International Obesity Task Force (IOTF).Citation34](/cms/asset/4f7b87bb-0e32-4c9c-82e4-6544682874e2/dcle_a_12297777_f0004_c.jpg)