Prevalence of Primary Hypertension and Risk Factors in Grade XII Learners in KwaZulu-Natal, South Africa

Table 1

Stratification of hypertension by gender, race, and body mass index.

	Normotensive	Prehypertensive				Hypertensive
	n (%)	n (%)	OR	95% CI	p value	n (%)	OR	95% CI	p value
Total	319 (56.6)	168 (29.8)				77 (13.6)
Gender
Male	97 (47.6)	73 (35.8)	1,8	(1.2 - 2.6)	0,004	34 (16.7)	1,8	(1.1 - 3.0)	0,02
Female	222 (61.7)	95 (26.4)				43 (11.9)
Race
Black	275 (57.8)	144 (30.2)				57 (12.0)
Other racial groups	44 (50.0)	24 (27.3)	1,0	(0.6 - 1.8)	0,9	20 (22.7)	2,2	(1.2 - 4.0)	0,01
BMI
Normal	256 (64.2)	105 (26.3)				38 (9.5)
Overweight	43 (47.8)	32 (35.6)	1,8	(1.1-3.0)	0,02	15 (16.7)	2,4	(1.2-4.6)	0,01
Obese	20 (26.7)	31 (41.3)	3,8	(2.1-6.9)	<0.001	24 (32.0)	8,0	(4.1-16.0)	<0.001

BMI: body mass index.
Other racial groups: comprised of South African, Indian, White, and mixed race.
OR: odds ratio.
CI: confidence interval.