Table 1.

Demographic characteristics of blood pressure measurements taken in participants in the Fels Longitudinal Study (N = 2079), southwestern Ohio, 1929–2010.

	Frequency	%
Age (years) at initial BP measurement
0–4	206	9.9
5–9	655	31.5
10–14	201	9.7
15–17	61	2.9
17+	956	46.0
Age (years) at final measurement to date
<11	111	5.3
11–19	283	13.6
20–29	379	18.2
30–39	335	16.1
40–49	274	13.2
50–59	261	12.6
60+	436	21.0
No. of years of follow-up
<6	890	47.1
6–9	145	7.7
10–19	312	16.5
20–29	185	9.8
30–39	244	12.9
40–49	113	6.0
50+	190	10.1
Sex
Males	965	46.4
Females	1114	53.6
Race
Caucasian	2023	97.7
Other	48	2.3