Table 2. HRs of incident stroke by SBP categories at age 40 years, n=2608.

	N	Crude		Adjusted*		Strokes, n
		HR (95% CI)	P value	HR (95% CI)	P value
SBP, mm Hg
<120	711 (27%)	1 (reference)	–	1 (reference)	–	17 (15%)
120–129	792 (30%)	1.58 (0.86 to 2.92)	0.144	1.47 (0.76 to 2.85)	0.252	28 (24%)
130–139	617 (24%)	1.97 (1.06 to 3.66)	0.032	1.71 (0.87 to 3.36)	0.118	27 (24%)
≥140	488 (19%)	4.07 (2.29 to 7.22)	<0.001	3.11 (1.62 to 6.00)	0.001	43 (37%)

^*Adjusted for age, sex, smoking, total cholesterol, physical activity, obesity, education.

SBP, systolic blood pressure