. 2018 Feb;9(1):36–41. doi: 10.24171/j.phrp.2018.9.1.07

Table 4.

Hypertension prevalence by age and sex before and after the Korea International Cooperation Agency (KOICA) -Yonsei programs (n = 663).

		n	Before	%	After	%	% Change	p
Male	Normal BP		0	0%	9	4%	+9^*
	Prehypertension		108	51%	123	58%	0.14
	1^st Stage Hypertension		49	23%	41	19%	−0.16
	2^nd Stage Hypertension		55	26%	39	18%	−0.29
	Total	212	212	100%	212	100%
	SBP (mmHg)	212	136.22 ± 21.01		127.97 ± 17.11			< 0.001
	DBP (mmHg)	212	75.40 ± 12.05		73.175 ± 11.50			< 0.001
	BMI	125	29.67 ± 5.20		29.04 ± 5.09			< 0.001
	Ab. Circumf. (cm)	124	98.34 ± 10.39		97.75 ± 8.83			< 0.100
Female	Normal BP		0	0%	100	22%	+1001
	Prehypertension		256	57%	215	48%	−0.16
	1^st Stage Hypertension		101	22%	109	24%	0.08
	2^nd Stage Hypertension		94	21%	27	6%	−0.71
	Total	451	451	100%	451	100%
	SBP (mmHg)	451	133.72 ± 21.03		123.16 ± 18.05			< 0.001
	DBP (mmHg)	451	73.33 ± 12.30		70.48 ± 10.62			< 0.001
	BMI	302	29.51 ± 4.87		28.83 ± 4.54			< 0.001
	Ab. Circumf. (cm)	303	96.13 ± 10.81		96.45 ± 10.80			< 0.100
< 60 years^†	Normal BP		0	0%	72	0%	+72^*
	Prehypertension		192	55%	158	55%	−0.18
	1^st Stage Hypertension		13	23%	17	23%	0.31
	2^nd Stage Hypertension		57	22%	15	22%	−0.74
	Total	262	262	100%	262	100%
	SBP (mmHg)	262	133.30 ± 20.01		122.13 ± 16.52			< 0.001
	DBP (mmHg)	262	78.01 ± 12.07		74.96 ± 10.72			< 0.001
	BMI	180	29.67 ± 4.63		28.88 ± 4.54			< 0.001
	Ab. Circumf. (cm)	180	97.65 ± 11.51		97.01 ± 10.74			< 0.100
≥ 60 years^†	Normal BP		0	0%	37	27%	+37^*
	Prehypertension		172	73%	180	60%	0.05
	1^st Stage Hypertension		137	5%	133	6%	−0.03
	2^nd Stage Hypertension		92	22%	51	6%	−0.45
	Total	401	401	100%	401	100%
	SBP (mmHg)	401	135.38 ± 21.67		126.43 ± 18.55			< 0.001
	DBP (mmHg)	401	71.38 ± 11.67		68.97 ± 10.51			< 0.001
	BMI	246	29.50 ± 5.39		28.98 ± 5.21			< 0.001
	Ab. Circumf. (cm)	247	96.08 ± 10.08		96.63 ± 9.88			< 0.100

Ab Cicumf = abdominal circumference; BMI = body mass index; BP = blood pressure; DBP = diastolic blood pressure; SBP = systolic blood pressure.

This number denotes a change in the absolute number of people. This is because the initial number of people with normal blood pressure in each category is zero, thus mathematically yielding an indefinite value when calculating the percentage change.

^†

The National Institute of Statistics and Information (INEI) of Peru divides the age groups into below and over 60 years on the demographic and health survey (DHS), when measuring blood pressure. Therefore, the Korea International Cooperation Agency programs also followed the age standard after consultation with the INEI.