Table 1 Numbers and percentages of hypertension cases and controls based on 140/90 mmHg or 160/100 mmHg cut-offs.

Cases		number	% total	mean SBP (mmHg)	SD	mean DSP (mmHg)	SD
Males
140/90 mmHg cut-off	Actively treated	1264	70.5	149.5	20.7	82.9	10.7
	>140/90 mmHg; not treated	530	29.5	156.0	14.6	85.2	9.3
	Total	1794
160/100 mmHg cut-off	Actively treated so cannot be used	1264	87.2	149.5	20.7	82.9	10.7
	>160/100 mmHg; not treated	185	12.8	171.7	12.0	90.2	8.9
	Total	1449
Controls
140/90 mmHg cut-off	≤140/90 mmHg but ≥130/80 mmHg	425	81.7	126.6	9.2	74.8	7.3
130/80 mmHg cut-off	≤130/80 mmHg	95	18.3	119.2	7.7	70.3	5.9
130/80 mmHg cut-off	Total	520
Females
140/90 mmHg cut-off	Actively treated	801	78.8	150.1	22.7	81.6	11.2
	>140/90 mmHg; not treated	215	21.2	156.3	14.5	83.7	9.1
	Total	1016
160/100 mmHg cut-off	Actively treated so cannot be used	801	92.4	150.1	22.7	81.6	11.2
	>160/100 mmHg; not treated	66	7.6	176.4	16.4	90.5	11.0
	Total	867
Controls
140/90 mmHg cut-off	<140/90 mHg but ≥130/80 mmHg	213	69.2	126.8	9.7	73.4	7.4
130/80 mmHg cut-off	<130/80	95	30.8	118.9	8.1	69.5	5.5
130/80 mmHg cut-off	Total	308

The numbers and percentages of cases and controls recruited into the study are provided based on whether they were actively treated, or based on BP measurements at the entry of the study. This information is calculated on 2 putative different BP cut-offs, i.e., 1) >140 or >90 mmHg for cases, and <140 and <90 mmHg for controls; 2) >160 or >100 mmHg for cases and <130 and <80 mmHg for controls. Means and SD of SBP (systolic blood pressure) and DBP (diastolic blood pressure) are also listed. For those cases actively treated for hypertension, since we do not have their real BP reading in the absence of medication, and they cannot be used in the in the high cut-off scenario, they are labels as “Actively treated so cannot be used” in the 160/100 mmHg cut-off group.

Quick links

Search