This was a cross-sectional growth survey that measured contemporary child growth and collect new data from a sample of individuals aged 0 to 20 years..
This was a territory-wide study that recruited newborns in birthing hospitals, infants attending Maternal and Child Health Centres, students attending preschools, kindergartens, primary schools, secondary schools, vocational schools and universities, as well as individuals in the community.
Over 20,000
Obtaining a truly representative sample for the study is not likely due to the lack of sampling frames for some age groups and/or practical difficulties. We used random sampling methods to select participants/study sites wherever practicable.
The study was launched in late 2019 and needed to respond to different restrictions and requirements during the COVID-19 outbreak. The study data collection finished in 2022.
Body measurements were taken including weight, length/height and head circumference, physical fitness measures where applicable and collected health related data with a self-completed questionnaires.
Data collected from Hong Kong growth survey 2020-22 were used to construct the HK2020 Growth
References, except for BMI-for-age and weight-for-age reference for 2-18 years.
For details of the statistical methods, please refer to the User Guide for health professionals.
Assessing appropriateness of WHO2006Data collected from Hong Kong growth survey 2020-22 were also used to assess whether WHO2006 is suitable for use in Hong Kong.