Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13293-019-0230-1/MediaObjects/13293_2019_230_Fig1_HTML.png)
a Gender-specific trend of systolic blood pressure (SBP) in adolescents aged 15–19 years: SuRFNCD 2007–2011. b Gender-specific trend of diastolic blood pressure (DBP) in adolescents aged 15–19 years: SuRFNCD 2007–2011. Error bars show standard errors of mean