Trends in mean age-standardised systolic and diastolic blood pressure, weight, waist circumference, body mass index and waist-hip ratio in Vietnam population aged 25–74 between 2001 and 2009, stratified by sex and residential areas.

†(1) NESH: the national epidemiological survey on hypertension and its risk factors; (2) HF-S: the survey on heart failure and its risk factors; (3) DM-S: the survey on diabetes and its risk factors; (4) NCDS: the survey on non-communicable disease risk factors; (5) HMPS: the hypertension management programme in rural communes (naïve communes).*p for trend was estimated from univariable linear regression between the variable of interest with time (year).