May 2017: For our American friends, we have just added a CDC chart option to the plotters for older children aged 2-20y. For infants and toddlers aged 0-2y, CDC now recommends health care providers use these WHO growth standards to monitor growth.
This page is running on a Shiny server that allows the statistical package R to plot growth on the 2014 WHO Growth Charts for Canada, published by the Public Health Agency of Canada for ages 0-2 years. Set 1 and 2 charts differ only in the selection of percentiles in the normal range. This Shiny application is designed for direct data entry to complement the original application that uses uploaded .csv files. Once you enter your data here, you can download the .csv file for use with the other plotters and Z-score calculators in the sidebar.
Dates must be entered using the format
and are stored as days since Jan 1, 1970. To calculate age in months, we use the WHO recommended conversion of 30.4375 days per month. Height is in recumbent length in cm (standing height + 0.7 cm), weight is in kg, and head circumference is in cm. After entering your selections, click
to add the new data point to your dataset. The full dataset will be updated and displayed below. When ready, click
to plot the dataset.
This will remain blank until at least one data point is added by clicking
Once a dataset has been created, click
to render the 2014 WHO Growth Charts for Canada. The sidebar provides plot options and a choice of charts.
Once you're happy with your data and plot options, click on the appropriate
button to download hi-resolution graphics for publication or presentation. You may also download a .csv spreadsheet with the dataset you entered for use with our
or Z score calculators
Although age in months (agemons) is the actual variable of interest for these applications, I include the dates of birth (DOB) and visit (DOV) in the format '2000-12-30'; however, depending on your local setup, I can't guarantee that Excel will display them in this format.