{"Group":"control","Time":"(none)","Number":20337,"PctBoys":51.2}
{"Group":"exposed","Time":"13-16mo","Number":71,"PctBoys":52.1}
{"Group":"exposed","Time":"7-12mo","Number":789,"PctBoys":49.6}
{"Group":"exposed","Time":"0-6mo","Number":1922,"PctBoys":48.9}
{"Group":"exposed","Time":"1st trimester","Number":290,"PctBoys":46}