Table 3. Association Between Hypertension And Specific Risk Factors (Univariate Analysis).

	Any hypertension SBP ≥ 140, DBP ≥ 90 mmHg			Grade 2 and 3 hypertension SBP ≥ 160, DBP ≥ 100 mmHg			Grade 3 hypertension SBP ≥ 180, DBP ≥ 110 mmHg
Parameters	OR	95% CI	p-value	OR	95% CI	p-value	OR	95% CI	p-value
Age group (years)
40–49	1.00			1.00			1.00
50–59	1.88	1.71–2.07	< 0.001	2.08	1.84–2.34	< 0.001	1.99	1.67–2.38	< 0.001
60–69	2.51	2.27–2.77	< 0.001	2.70	2.39–3.06	< 0.001	2.55	2.13–3.06	< 0.001
70–79	2.82	2.47–3.22	< 0.001	3.08	2.65–3.59	< 0.001	3.05	2.50–3.72	< 0.001
≥ 80	2.95	2.49–3.49	< 0.001	3.33	2.79–3.98	< 0.001	3.29	2.60–4.18	< 0.001
Gender
Male	1.00			1.00			1.00
Female	1.19	1.10–1.27	< 0.001	1.37	1.26–1.49	< 0.001	1.33	1.18–1.50	< 0.001
Residence
Rural	1.00			1.00			1.00
Urban	1.42	1.21–1.66	< 0.001	1.46	1.23–1.73	< 0.001	1.48	1.20–1.82	< 0.001
Literacy
Literate	1.00			1.00			1.00
Illiterate	1.23	1.13–1.35	< 0.001	1.24	1.12–1.38	< 0.001	1.23	1.09–1.40	< 0.001
Geo-political zones
North-east	2.94	2.27–3.81	< 0.001	2.46	1.87–3.24	< 0.001	2.61	1.84–3.71	< 0.001
South-east	1.34	1.11–1.60	0.002	1.28	1.03–1.59	0.029	1.45	1.07–1.96	0.017
South-south	1.00			1.00			1.00
North-west	2.04	1.72–2.42	< 0.001	1.56	1.25–1.95	< 0.001	1.48	1.10–2.0	0.011
South-west	1.29	1.07–1.55	0.006	1.20	0.96–1.51	0.108	1.33	0.99–1.78	0.056
North-central	1.26	1.02–1.54	0.03	1.03	0.80–1.32	0.824	1.08	0.79–1.48	0.635
Socio-economic status
Affluent	1.00			1.00			1.00
Moderately affluent	1.19	1.08–1.32	< 0.001	1.14	1.02–1.28	0.025	1.15	0.98–1.35	0.084
Least affluent	1.69	1.52–1.87	< 0.001	1.78	1.58–2.01	< 0.001	1.83	1.55–2.15	< 0.001
Body mass index (13 352)
Underweight	0.92	0.81–1.04	0.163	0.95	0.83-1.10	0.489	1.00	0.82-1.22	0.998
Normal	1.00			1.00			1.00
Overweight	1.45	1.32–1.6	< 0.001	1.45	1.30–1.62	< 0.001	1.45	1.27–1.66	< 0.001
Obese	2.08	1.78–2.43	< 0.001	2.15	1.85–2.50	< 0.001	2.08	1.73–2.50	< 0.001