Scatter plots of average 24-ABPM vs SBPM, 1st uABP and 2nd uABP. (a–c) Show average 24 h-ABPM SBP vs SBP of SBPM, 1st uABP and 2nd uABP respectively, using the cut off ≥140 mmHg. (d–f) Show average 24 h-ABPM DBP vs DBP of SBPM, 1st uABP and 2nd uABP respectively, using the cut off ≥90 mmHg. 24 h-ABPM = 24-h ambulatory blood pressure monitor; SBPM = standard blood pressure measurement; uABP = unattended blood pressure; SBP = systolic blood pressure; DBP = diastolic blood pressure. Black solid line is BP threshold for average 24 h-ABPM (130 mmHg systolic, 80 mmHg diastolic); dashed line is BP threshold for screening measurements (140 mmHg systolic, 90 mmHg diastolic). Green colour- BP measurements match gold standard. Orange colour-masked hypertension. Red colour-white coat hypertension.