Table 2.

Number of subjects included in each of the age and blood pressure categories in the reference values population (11 092 subjects)

Age category (years)	Optimal	Normal	Blood pressure group
			High normal	Grade I HT	Grade II/III HT
<30	896	417	220	96	40
30–39	315	245	184	189	109
40–49	822	562	385	325	167
50–59	514	519	434	490	238
60–69	414	509	485	648	289
≥70	163	244	333	535	305

HT, hypertension.