Prevalence and Associated Risk Factors of Hypertension: A Cross-Sectional Study in Urban Varanasi

Table 3

Mean systolic and diastolic blood pressure (mm hg) and prevalence (%) of isolated systolic hypertensive and isolated diastolic hypertensive by age and gender.

Age groups (years)	640	Systolic BP (mean ± SD)			Diastolic BP (mean ± SD)
		Male	Female	Total	Male	Female	Total
25–34	204	122.17 ± 9.54	114.81 ± 9.99	117.84 ± 10.44	82.92 ± 9.0	78.97 ± 7.46	80.59 ± 8.34
35–44	179	124.10 ± 10.77	121.71 ± 15.13	122.90 ± 13.07	85.70 ± 7.66	81.71 ± 9.30	83.75 ± 8.68
45–54	133	132.36 ± 13.21	127.16 ± 18.04	129.66 ± 16.05	89.23 ± 8.16	83.28 ± 10.22	86.14 ± 9.72
55–64	124	134.66 ± 19.53	127.27 ± 15.74	130.97 ± 18.05	86.42 ± 12.15	83.24 ± 9.32	84.83 ± 10.90
Total	640	127.49 ± 14.19	121.39 ± 15.26	124.25 ± 15.05	85.82 ± 9.43	81.34 ± 9.05	83.45 ± 9.49
Test of significance		F = 15.396	F = 15.611	F = 30.466	F = 5.801	F = 4.921	F = 11.174
		df = 3	df = 3	df = 3	df = 3	df = 3	df = 3
		p = 0.001	p = 0.001	p = 0.001	p = 0.001	p = 0.002	p = 0.001
Age groups (years)	559	Isolated systolic HTN ()^#			Isolated diastolic HTN ()^#
		Male	Female	Total	Male	Female	Total
25–34	202	3 (3.6)	1 (0.8)	4 (6.8)	14 (16.7)	10 (8.5)	24 (21.8)
35–44	166	11 (12.9)	7 (8.6)	18 (30.5)	25 (29.4)	10 (12.3)	35 (31.8)
45–54	101	9 (18.4)	6 (11.5)	15 (25.4)	22 (44.9)	8 (15.4)	30 (27.3)
55–64	90	16 (35.6)	6 (13.3)	22 (37.3)	13 (28.9)	8 (17.8)	21 (19.1)
Total		39 (14.8)	20 (6.8)	59 (10.6)	74 (28.1)	36 (12.2)	110 (19.7)
Test of significance		χ^2  =  24.461	χ^2  =  11.974	χ^2  =  36.114	χ^2  =  12.355	χ^2  =  3.338	χ^2  =  15.160
		df = 3	df = 3	df = 3	df = 3	df = 3	df = 3
		p = 0.001	p = 0.007	p = 0.001	p = 0.006	p = 0.342	p = 0.002

Excluding known hypertensive.