Table 1. Definitions of blood pressure outcome used in the study.

Blood pressure outcomes	Measurement-only definitions	Medical definitions
Hypertension (JNC7)†	SBP ≥140mmHg or DBP ≥ 90 mmHg	Meet any of the following three criteria: (1) SBP ≥ 140mmHg or DBP ≥ 90mmHg (2) Doctor/nurse diagnosed high blood pressure (3) Taking blood pressure-lowering medication
Hypertension (ACC/AHA 2017)‡	SBP ≥130mmHg or DBP ≥ 80 mmHg	Meet any of the following three criteria: (1) SBP ≥ 130mmHg or DBP ≥ 80mmHg (2) Doctor/nurse diagnosed high blood pressure (3) Taking blood pressure-lowering medication
Normal blood pressure (JNC7 or ACC/AHA 2017)	SBP <120mmHg and DBP <80 mmHg	SBP ≤ 120mmHg and DBP ≤ 80 mmHg, no diagnosis of high blood pressure, and not taking blood pressure-lowering medication

^†JNC7 = The Seventh Report of the Joint National Committee

^‡ACC/AHA 2017 = The 2017 American College of Cardiology/American Heart Association